captioning funded by cbs and ford. we go further, so you can. >> he's at the center of the facebook scandal. facebook says that you lied to them. and mark zuckerberg blamed him for selling the data of millions of unwitting users. >> people have a right to be very upset. i am upset that that happened. >> but not everyone believes facebook's explanation, either. >> you've got a company that has repeatedly had privacy scandals. you know, if your partner was cheating on you and they cheated on you 15 times, and apologized 15 times-- at some point, you have to say, "enough is enough. ( dolphin sounds ) >> welcome to the future-- m.i.t.'s media lab. a place that follows crazy ideas wherever they may lead. >> we get to think about the future. what does the world look like in

ten years, 20 years, 30 years? what should it look like? >> time to go to sleep. >> how about dream control? robotic prosthetics? what's the largest city in bulgaria and what is the population? or connecting the human brain to the internet? >> sofia, 1.21 million. >> that is correct! >> you know, the best way to predict the future is to invent it. >> when you heard the word "alzheimer's," what did that do to you? >> i was devastated. >> what makes this story so unusual is that almost every year for the past ten years, we've interviewed mike and carol, as alzheimer's took over her brain. even though this is intensely personal, they wanted all of us to see the devastating impact of alzheimer's, on each of them, over a decade. what's your husband's name? >> my husband? >> your husband's name? >> yeah. >> the guy sitting to your left.

>> i'm steve kroft. >> i'm lesley stahl. >> i'm scott pelley. >> i'm anderson cooper. >> i'm jon lapook. >> i'm bill whitaker. those stories, tonight, on "60 minutes." my day starts well before i'm even in the kitchen. i need my blood sugar to stay in control. so i asked about tresiba®. ♪ tresiba® ready ♪ tresiba® is a once-daily, long-acting insulin that lasts even longer than 24 hours. i need to shave my a1c. ♪ tresiba® ready ♪ tresiba® works like my body's insulin. releases slow and steady. providing powerful a1c reduction. i'm always on call. an insulin that fits my schedule is key. ♪ tresiba® ready ♪ i can take tresiba® any time of day. so if i miss or delay a dose, i take it when i remember, as long as there's at least 8 hours between doses. once in use, it lasts 8 weeks with or without refrigeration,

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facebook allowed russian trolls to buy u.s. election ads, advertisers to discriminate by race, hate groups to spread fake news and, because facebook shirked privacy concerns, a company called cambridge analytica was able to surreptitiously gain access to personal data mined from as many as 87 million facebook users. the man who mined that data for cambridge analytica is a scientist named aleksandr kogan. he's at the center of the facebook controversy, because he developed an app that harvested data from tens of millions of unwitting facebook users. the main infraction, the main charge is that you sold the data. >> aleksandr kogan: so, i mean, at the time i thought we were doing everything that was correct. you know, i was kind of acting, honestly, quite naively. i thought we were doing everything okay. >> stahl: facebook says that you lied to them. >> kogan: that's frustrating to hear, to be honest. if i had any inkling that what

we were going to do was going to destroy my relationship with facebook, i would've never done it. if i had any inkling that i was going to cause people to be upset, i would've never done it. this was the blindness we had back then. >> stahl: for someone implicated in the biggest privacy scandal on earth, kogan seems incongruously guileless. before all this happened, what was your job? and what was your field of study? >> kogan: so, i was a social psychologist. i was working as a university lecturer at the university of cambridge-- >> stahl: in england? >> kogan: in england. and i ran this lab that studied happiness and kindness. and-- >> stahl: happiness and kindness? ( laughs ) >> kogan: yup. >> stahl: that's a far cry from the adjectives lobbed at him now-- sinister and unethical. here's what he did. he asked facebook users to take a survey he designed, from which he built psychological profiles meant to predict their behavior. he failed to disclose, one, that what he was really after was

access to their friends, tens of millions of people he could not otherwise reach easily. and two, that he was doing the survey for cambridge analytica, a political consulting firm, that used the material to influence people on how to vote. the company's then-c.e.o. bragged about their prediction models on stage. >> alexander nix: by having hundreds and hundreds of thousands of americans undertake this survey, we were able to form a model to predict the personality of every single adult in the united states of america. >> stahl: did you get to the point where you were predicting personalities? >> kogan: yup. >> stahl: and you gave that to cambridge analytica? >> kogan: correct. >> stahl: what did you think they were going to use it for? >> kogan: i knew it was going to be for elections, and i had an understanding or a feeling that it was going to be for the republican side. >> stahl: as political consultants, cambridge analytica is hired by campaigns to analyze voters and target them with ads. in the 2016 presidential

election, cambridge analytica worked first for the ted cruz campaign, then later for donald trump, though his campaign says they didn't use the kogan data. the republican benefactors, robert and rebekah mercer, were cambridge analytica's financial backers; steve bannon was on the board. so did you ever meet or hear about steve bannon at cambridge analytica? the mercers? >> kogan: nope. >> stahl: jared kushner? nothing? >> kogan: and those names would not ever have rung a bell for me, to be honest. >> stahl: tell us what you did. >> kogan: yeah, so, i create this app where people sign up to do a study, and when they sign up to do the study, we would give them a survey. and in the survey, we would have just this facebook log-in button. and they would click the button, authorize us. we get their data-- >> stahl: "authorize us" to do what? >> kogan: to collect certain data. we would collect things like their location, their gender, their birthday, their page "likes," and similar information for their friends. and all of this-- >> stahl: but you-- did you say

you collected information on their friends? >> kogan: we did. >> stahl: but they didn't opt in. >> kogan: so, they didn't opt in explicitly. >> stahl: no, no, no. they didn't opt in, period. the friends did not opt in. >> kogan: and it seems crazy now. but this was a core feature of the facebook platform for years. this was not a special permission you had to get. this was just something that was available to anybody who wanted it, who was a developer. >> stahl: how many apps do you think there are, how many developers, who did what you did? >> kogan: tens of thousands. >> stahl: tens of thousands. >> kogan: tens of thousands. >> stahl: and facebook, obviously, was aware. >> kogan: of course. it was a feature, not a bug. >> stahl: the feature was called "friend permissions," which sandy parakilas, who used to work at facebook, explains. >> sandy parakilas: the way it works is, if you're using an app and i'm your friend, the app can say, "hey, lesley, we want to get your data for use in this app, and we also want to get your friends' data." if you say, "i will allow that,"

then the app gets my data, too. >> stahl: what you're saying is, i give permission for the friend? the friend doesn't give permission? >> parakilas: right. it doesn't feel right when you say it out loud? >> stahl: no, it doesn't feel right. >> parakilas: right. >> stahl: facebook should've been aware of how this could be abused, because they were repeatedly warned, including by parakilas, who used to be a manager in charge of protecting data at the company. he says he raised concerns years before kogan built his app. >> parakilas: i think they didn't want to know. you know, the impression that i got working there is that-- >> stahl: they didn't want the public to know. >> parakilas: well, they didn't want to know. in the sense that if they didn't know, then they could say they didn't know and they weren't liable. whereas if they knew, they would actually have to do something about it. and one of the things that i was concerned about was that applications or developers of applications would receive all of this facebook data, and that once they received it, there was no insight. facebook had no control or view

over what they were doing with the data. >> stahl: once the data left facebook, did facebook have any real way to find out what happened to it? >> parakilas: no. >> stahl: or was it just gone? >> parakilas: it was gone. >> stahl: wow. >> parakilas: they could put it on a hard drive and they could hide it in a closet. >> stahl: would you say then, policing this was pretty impossible? >> parakilas: it was very frustrating. >> stahl: did you bring this to the attention of the higher-ups, the executives? >> parakilas: yeah, a number of folks, including several executives. >> stahl: so, were the executives' hair on fire? did they say, "oh, my god, we have to fix this? we have to do something"? >> parakilas: i didn't really see any traction, in terms of making changes to protect people. they didn't prioritize it, i think, is how i would phrase it. >> stahl: so would you say that they didn't prioritize privacy? >> parakilas: yes. i would say that they prioritize the growth of users, the growth of the data they can collect and their ability to monetize that through advertising. that's what they prioritized, because those were the metrics,

and are the metrics that the stock market cares about. >> stahl: facebook c.e.o. mark zuckerberg turned down our request for an interview. eventually the company did change its policy, so app developers can no longer gather data from users' friends without their consent. facebook's years of failing to protect users' privacy by allowing covert harvesting of so much personal data became the center of the congressional hearings two weeks ago. in his defense, c.e.o. mark zuckerberg pointed the finger at one particular app developer. >> mark zuckerberg: if a developer who people gave their information to, in this case aleksandr kogan, then goes and, in violation of his agreement with us, sells the data to cambridge analytica, that's a big issue. people have a right to be very upset. i am upset that that happened. >> stahl: you're a villain in many eyes, the guy who stole data from facebook and then sold it.

>> kogan: the idea that we stole the data, i think, is technically incorrect. i mean, they created these great tools for developers to collect the data, and they made it very easy. i mean, this was not a hack. this was, "here's the door. it's open. we're giving away the groceries. please collect them." >> stahl: your point, though, i think, is that they're singling you out. >> kogan: i think there's utility to trying to tell the narrative that this is a special case, that i was a rogue app, and this was really unusual. because if the truth is told, and this is pretty usual and normal, it's a much bigger problem. >> stahl: and he says he wasn't hiding anything from facebook. when aleksandr kogan built his app, he posted its terms of service-- that's what users agree to when they download an app. his terms of service said this: "if you click 'okay,' you permit us to disseminate, transfer, or

sell your data," even though it was in direct conflict with facebook's developer policy. it says plainly in the developer policy, clearly, that you are not allowed to transfer or sell data. it says that. come on. this was as clear as can be. >> kogan: i understand that now. >> stahl: you didn't understand that then? >> kogan: i'm not even sure if i read the developer policy back then. >> stahl: he says that nobody read these privacy sign-offs. not him, not the users who signed on, not facebook. >> kogan: this is the frustrating bit, where facebook clearly has never cared. i mean, it never enforced this agreement. and they tell you that they can monitor it, and they can audit, and they'll let you know if you do anything wrong. i had a terms of service that was up there for a year and a half, that said i could transfer and sell the data. never heard a word. the belief in silicon valley, and certainly our belief at that

point, was that the general public must be aware that their data is being sold and shared and used to advertise to them, and nobody cares. >> stahl: facebook did shut down his app, but only after it was exposed in the press in 2015. the company didn't start notifying the tens of millions of users whose data had been scraped until this month. they never took action against this man: joseph chancellor, who was kogan's co-worker. >> stahl: and where is he today? >> kogan: he works at facebook. >> stahl: wait a minute. is-- did he have anything to do with the study you did for cambridge analytica? >> kogan: yeah. i mean, we did everything together. >> stahl: so they've come after you, but not someone who did exactly what you did, with you. >> kogan: yes. >> stahl: and he actually works at facebook? >> kogan: correct. >> stahl: are you on facebook? >> kogan: no. they deleted my account. >> stahl: you can't be on facebook. you're banned. >> kogan: i'm banned. >> stahl: and the partner works for them.

>> kogan: correct. >> stahl: what's wrong with this picture? i'm missing something? >> kogan: yeah, i mean, this is my frustration with all this, where i had a pretty good relationship with facebook for years. >> stahl: really, so they knew who you were? >> kogan: yeah. i visited their campus many times. they had hired my students. and i even did a consulting project with facebook in november of 2015. and what i was teaching them was lessons i learned from working with this data set that we had collected for cambridge analytica. so i was explaining, like, "here's kind of what we did, and here's what we learned. and here's how you can apply it internally to help you with surveys and survey predictions and things like that." >> stahl: facebook confirmed that kogan had done research and consulting with the company in 2013 and 2015, but in a statement, told "60 minutes:" "at no point during these two years was facebook aware of kogan's activities with cambridige analytica." kogan is testifying before the british parliament next week.

he says he's financially ruined and discredited. through his ordeal, he says he's come to see the error in the assumptions made by the tech world about americans' attitudes toward privacy. now we all know what you did. was it right? >> kogan: back then, we thought it was fine. right now, my opinion has really been changed, and it's been changed in particular because i think that core idea that we had-- that everybody knows and nobody cares-- was fundamentally flawed. and so, if that idea is wrong, then what we did was not right and was not wise. and for that, i'm sincerely sorry. >> stahl: it turns out kogan has something in common with mark zuckerberg. they're both suddenly contrite. >> zuckerberg: we didn't take a broad enough view of our responsibility, and that was a big mistake. and it was my mistake, and i'm sorry. >> stahl: mark zuckerberg says that he cares about privacy now? >> parakilas: i think the real

problem is-- is not what he feels in his heart. i think the real problem is that you've got a company that has repeatedly had privacy scandals. it has repeatedly shown that it doesn't prioritize privacy, over the years. and you know, when you th-- when you think about that, it's like-- you know, put yourself in the position of, you know, if your partner was cheating on you, and they cheated on you 15 times and apologized 15 times-- at some point, you have to say, "enough is enough." like, we need to make some kind of a change here. >> cbs money watch sponsored by lincoln financial. no matter who you're responsible for, lincoln can help. >> elaine: good evening inch a speech thursday, president trump is expected to call for lower prescription drugs prices. facebook, twitter, and starbucks report earnings this week. and more than $7 million of burgundy wine was auctioned last week in chicago. i'm elaine quijano, cbs news.

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>> pelley: back in the 1980s, a laboratory of misfits foresaw our future. touch screens, automated driving instructions, wearable technology and electronic ink were all developed at the massachusetts institute of technology, in a place they call the media lab. it's a research lab and graduate school program that long ago outgrew its name. today, it's creating technologies to grow food in the desert, control our dreams, and connect the human brain to the internet. come have a look at what we found in a place you could call the "future factory." to arnav kapur, a graduate student in the media lab, the

future is silent. he's developed a system to surf the internet with his mind. >> arnav kapur: what happens is, when you're reading or when you're talking to yourself, your brain transmits electrical signals to your vocal cords. you can actually pick these signals up and you can get certain clues as to what the person intends to speak. >> pelley: so the brain is sending an electrical signal for a word that you would normally speak, but your device is intercepting that signal? >> kapur: it is. >> pelley: so instead of speaking the word, your device is sending it into a computer. >> kapur: that's correct. >> pelley: that's unbelievable. let's see how this works. so we tried him. what is 45,689 divided by 67? >> kapur: sure. >> pelley: he silently asked the computer, and then hears the answer through vibrations transmitted through his skull and into his inner ear.

>> kapur: six-eight-one-point- nine-two-five. >> pelley: exactly right. one more. what's the largest city in bulgaria and what is the population? the screen shows how long it takes the computer to read the words that he's saying to himself. >> kapur: sofia, 1.21 million. >> pelley: that is correct. you just googled that. >> kapur: i did. >> pelley: you could be an expert in any subject. you have the entire internet in your head. >> kapur: that's the idea. >> pelley: ideas are the currency of m.i.t.'s media lab. the lab is a six-story tower of babel where 230 graduate students speak dialects of art, engineering, biology, physics and coding, all translated into innovation. >> hugh herr: the media lab is

this glorious mixture, this renaissance, where we break down these formal disciplines and we mix it all up and we see what pops out. that's the magic, that intellectual diversity. >> pelley: hugh herr is a professor who leads an advanced prosthetics lab. and what do you get from that? >> herr: you get this craziness. when you put, like, a toy designer next to a person that's thinking about what instruments will look like in the future, next to someone like me, that's interfacing machines to the nervous system, you get really weird technologies. you get things that no one could've have conceived of. >> pelley: the media lab was conceived in a 1984 proposal. m.i.t.'s nicholas negroponte wrote, "computers are media" that will lead to "interactive systems." he predicted the rise of flat panel displays, hd tvs and news "whenever you want it." negroponte became cofounder of the lab, and its director for 20 years.

>> nicholas negroponte: when we were demonstrating these things in, let's say, '85, '86, '87-- it was really considered new. >> pelley: it looked like magic. >> negroponte: indistinguishable from magic. >> you are going east on main street. >> pelley: in 1979, m.i.t. developed "movie map," which predated google street view by decades. >> you are going north on aspen street. >> pelley: now, notice what's so common today that you didn't even notice it-- he's touching the screen. if you had seen that on "60 minutes" in the '80s, you would you have been amazed. and, you might have been dazzled by one of the earliest flat screens. >> negroponte: it was six inches by six inches, black and white. it was a $500,000 piece of glass. >> pelley: it cost a half a million dollars? >> negroponte: it cost half a million dollars, that piece of glass. i said, "that piece of glass will be six feet in diagonal with millions of pixels in full color."

>> pelley: in 1997, the lab also gave birth to the grandfather of siri and alexa. >> nomadic, wake up. >> okay, i am listening. >> go to my email. >> where do you want to go? >> pelley: and in 1989, it created turn-by-turn navigation that it called "back seat driver." >> bear right at the stop sign. >> negroponte: and the m.i.t. patent lawyers looked at it and said, "this will never happen, never be done, because the insurance companies won't allow it. so we're not going to patent it." >> pelley: look through the glass-walled labs today, and you will witness 400 projects in the making. the lab is developing pacemaker batteries recharged by the beating of the heart, self- driving taxi tricycles that you summon with your phone, phones that do retinal eye exams. and teaching robots. >> pattie maes: so we think that the devices of tomorrow have an

opportunity to do so much more, and to fit better in our lives. >> pelley: professor pattie maes ran the graduate program's student admissions for more than a decade. >> maes: we really select for people who have a passion. we don't have to tell them to work hard. we have to tell them to work less hard and to get sleep, occasionally. >> pelley: how often does a student come to you with an idea and you think, "we're not going to do that?" >> maes: actually, for us, the crazier the better. >> pelley: adam haar-horowitz's idea was so nutty, he was one of 50 new students admitted last year out of 1,300 applications. >> adam haar-horowitz: i was really interested in a state of sleep where you start to dream before you're fully unconscious. where you keep coming up with ideas right as you're about to go to sleep. >> time to go to sleep. >> pelley: haar-horowitz's system plants ideas for dreams... >> remember to think of a mountain. >> pelley: ...then records conversations with the dreamer

during that semi-conscious moment before you fall asleep. >> tell me, what are you thinking? >> sleeper: i'm doing an origami pyramid. >> pelley: her origami pyramid dream was influenced by the robot saying the word "mountain." it's long been believed that this is the moment when the mind is its most creative. haar-horowitz hopes to capture ideas that we often lose by the next morning. >> haar-horowitz: so, it's basically like a conversation. you can ask, "hey, jibo, i'd like to dream about a rabbit tonight." it would watch for that trigger of unconsciousness, and then right as you're hitting the lip, it triggers you with the audio. and it asks you what is it that you're thinking about. you record all that sleep talking. and then later, when you wake up fully, you can ask for those recordings. >> pelley: and when he brought this idea to you, what did you think, really? >> maes: crazy enough, yep. ( laughs ) >> herr: welcome to the world of bodies and motions. >> pelley: nearby, in hugh herr's lab, everett lawson's

brain is connected to his prosthetic foot, a replacement for the club foot he was born with. >> everett lawson: the very definition of a leg, or a limb or ankle is going to dramatically change with what they're doing. it isn't just whole, it's 150%. >> herr: you feel directly corrected? >> lawson: yeah, when i fire a muscle really fast, it makes its full sweep. >> pelley: herr's team has electronically connected the computers in the robotic foot with the muscles and nerves in lawson's leg. >> herr: he's not only able to control via his thoughts. he can actually feel the designed synthetic limb. he feels the joints moving as if the joints are made of skin and bone. >> pelley: for professor herr, necessity was the mother of invention. he lost his legs to frostbite at age 17, after he was stranded by a winter storm while mountain climbing. >> herr: through that recovery process, my limbs are amputated,

i design my own limbs, i return to my sport of mountain climbing. i was climbing better than i'd achieved with normal, biological limbs. that experience was so inspiring because i realized the power of technology to heal, to rehabilitate, and even extend human capability beyond natural, physiological levels. >> pelley: you developed the legs that you're wearing today? >> herr: each leg has three computers, actually, and 12 sensors. and they run these computations based on the sensory information that's coming in. and then what's controlled is a motor system, like muscle, that drives me as i walk; enable me to walk at different speeds. >> pelley: what will this mean for people with disabilities? >> herr: technology is freeing. it removes the shackles of disability from humans. and the vision of the media lab is that one day, through advances in technologies, we will eliminate all disability. >> joi ito: so, that was a big deal.

>> pelley: the current director of the media lab is joi ito-- a four-time college drop out, and one of those misfits that the lab prefers. after success in high tech venture capital, he came here to preside over the lab's 30 faculty and a $75 million annual budget. how do you pay for all this? >> ito: so, we have 90 companies that pay us a membership fee to join the consortium. and then, because it's all coming into one pot, i can distribute the funds to our faculty and students, and they don't have to write grant proposals, don't have to ask for permission. they just make things. >> pelley: do any of these companies lean on you from time to time, and say, "hey, we need some product here." >> ito: they do. i've fired companies for that. >> pelley: you fired them? >> ito: yeah, i've told companies, you're too bottom- line oriented. maybe we're not right for you. >> pelley: the sponsors, which include lego, the toy maker; toshiba; exxonmobil and general electric, get first crack at

inventions. the lab holds 302 patents, and counting. >> caleb harper: we're inside of the lab. >> pelley: caleb harper's idea is so big, it doesn't fit in the building. so, m.i.t. donated the site of an abandoned particle accelerator for this trained architect, who is now building farms. >> welcome to the farm. >> pelley: he calls these "food computers"-- farms where conditions are perfect. >> harper: they're all capable of controlling climate. so they make a recipe. this much co2, this much o2, this temperature. so we create a world in a box. most people understand if you say, oh, the tomatoes in tuscany on the north slope taste so good, and you can't get them anywhere else. that's those genetics under those conditions that cause that beautiful tomato. so we study that inside of these boxes with sensors, and the ability to control climate. >> pelley: tuscany in a box. >> harper: tuscany in a box, napa in a box, bordeaux in a box. >> pelley: now, these are plants you're growing in air. >> harper: yeah. >> pelley: these basil plants

grow, not in soil, but in air... >> harper: the plant is super happy. >> pelley: no dirt. ...air saturated with a custom mix of moisture and nutrients. >> so each one of these are drops that drops down to the reservoir. >> pelley: the food computers grow almost anything, anywhere. >> pelley: what have you learned about cotton farming? >> harper: so, cotton is actually a perennial plant, which mean it would grow, you know, the whole year long, but it's treated like an annual. we have a season. so in this environment, since it's perfect for cotton, we've had plants go 12 months. >> pelley: so how many crops can you get in a controlled environment like this one? >> harper: you can crop up to four or five seasons. we're growing, on average, three to four times faster than they can grow in the field. the uncommon growth of the media lab flows from its refusal to be bound to goals, contracts, or next quarter's profits. it is simply a ship of exploration going wherever a crazy idea may lead. >> herr: we get to think about the future.

what does the world look like, ten years, 20 years, 30 years? what should it look like? you know, the best way to predict the future is to invent it. >> moving faster, longer and stronger. >> ha, ha, ha, ho! that's remarkable. wow! >> human legs get an assist. go to 60minutesovertime.com. mitzi: psoriatic arthritis tries to get in my way? watch me. ( ♪ ) mike: i've tried lots of things for my joint pain. now? watch me. ( ♪ ) joni: think i'd give up showing these guys how it's done? please. real people with active psoriatic arthritis are changing the way they fight it. they're moving forward with cosentyx. it's a different kind of targeted biologic. it's proven to help people find less joint pain and clearer skin. don't use if you are allergic to cosentyx. before starting cosentyx

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>> stahl: now, dr. jon lapook, on assignment for "60 minutes." >> lapook: mike and carol daly have been married for 53 years. like more than five million american families, they're dealing with dementia. carol has been suffering from alzheimer's, the main type of dementia. what makes this story so unusual is that almost every year for

the past ten years, we've interviewed mike and carol, as alzheimer's took over her brain. even though this is intensely personal, they wanted all of us to see the devastating impact of alzheimer's, on each of them, over a decade. >> mike daly: we should have brought the bread. >> lapook: when we first met carol and mike in 2008, carol was active, conversational, and determined to make the best of her failing memory. how old are you now? >> carol daly: 65? 65. yeah. i think, right? >> mike daly: yeah. >> lapook: carol's memory had been spotty for several years. >> mike daly: i started to notice at home, and i used to joke about it to my kids. i would say, you know, "i think she has alzheimer's, the way she forgets everything." >> lapook: then a doctor told her she really did have alzheimer's. mike's mother had had it. now, his wife. carol, when you heard the word "alzheimer's," what did that do to you?

>> carol daly: i was devastated. because i saw his mother, what she went through. it's terrible. she was walking the streets in the middle of the night, and we had to bring her home. >> lapook: as carol's memory deteriorated, she lost her job at a bank, and lost her ability to do a lot of what she'd always done at home. did you used to be a good cook? >> carol daly: yeah. >> mike daly: oh, yeah. >> lapook: what happened? >> carol daly: it stopped. it just-- i just couldn't do it. >> lapook: what couldn't you do? >> carol daly: i didn't know what to do first. the meatloaf. >> mike daly: oh, the meatloaf. that was the-- >> carol daly: it was terrible. couldn't eat it. >> lapook: because? >> carol daly: i don't know what i did with the ingredients or whatever. they just couldn't eat it. >> lapook: and you're tearing up. it's upsetting to you. >> carol daly: i don't want to be like this. i really don't. but--

>> lapook: unable to concentrate, carol had to give up reading, and movies. hard for someone who'd worshipped clark gable. >> carol daly: ooh, so handsome. >> lapook: so you remember that? >> carol daly: that, i know! ( laughs ) >> lapook: they told us carol's illness had brought them closer, but they feared the future. >> carol daly: my fear is, i guess, maybe getting worse. worse, you know? and it probably would. >> lapook: and it did. almost three years later, when we went back to visit, carol had no idea how old she was. >> carol daly: 80? no. i don't know. >> lapook: you're actually 67. >> carol daly: 67? >> lapook: 67. >> carol daly: yeah? >> lapook: and what about her favorite actor? do you remember clark gable? >> carol daly: oh, yeah. that was my-- yeah. >> lapook: who is he?

>> carol daly: oh-- ( sighs ) ( laughs ) i-- i don't know, now. >> lapook: now mike, a former new york city cop, had to apply her makeup, and dress her. but he told us, this was his chance to repay all that carol had done for him. >> mike daly: she had a job. she cleaned house. she did the wash. she made the beds and she put up with me. so what all that's changed for us is the roles. now, i do the wash. i make the beds. i help carol. >> lapook: but that's not what you signed up for? >> mike daly: yes, i did. when you-- when, when we took our oath, it's for better or for worse. so i did sign up for it, in the beginning. >> lapook: but mike had put on almost 20 pounds over the last two years, and started taking pills to reduce anxiety and help him sleep.

>> mike daly: the thing is, is i could sit here and feel sorry for myself, but what is that going to do for me? >> lapook: at our next meeting, one year later, when carol couldn't come up with words, she answered with laughs. what kind of thing? >> carol daly: ( laughs ) no, that's not right. >> lapook: and three years since our first visit, she needed constant watching. >> carol daly: i can't go out by myself. not like that. ( sighs ) so i always have to have somebody around. >> lapook: that's a bad feeling. >> carol daly: yeah. >> lapook: you've lost your independence? >> carol daly: yup. but that's what you do. >> mike daly: after all these years, i can't give up. and i'll continue to try. and i pray to god...

that she goes before me. because i'm not going to put her in a nursing home. i can handle it, but we live a life. >> lapook: but that life was a lot tougher when we returned, two years later. by then, carol could no longer remember her last name. or this: what's your husband's name? >> carol daly: my husband? >> lapook: your husband's name? >> carol daly: yeah. >> lapook: the guy sitting to your left. >> carol daly: yes. ( laughs ) >> lapook: that big guy who loves you. ♪ ♪ ♪ ♪ >> lapook: beyond the memory loss, as alzheimer's affected more of her brain, it was destroying more of her physical abilities. >> mike daly: she's losing the ability to control her feet, her hands.

>> lapook: it was six years ago that i first met you. >> mike daly: yeah. >> lapook: and at the time, you were shouldering all of the burden. >> mike daly: right. >> lapook: and you're still shouldering all of the burden. i mean, how are your shoulders? >> mike daly: they're sore. no doubt about it. but you have to do what you have to do. >> lapook: carol? at our next meeting, two years later, conversation with carol was impossible. it's been almost eight years since we first met, since we first sat on this couch. >> carol daly: ( laughs ) >> lapook: without making you embarrassed, do you remember my name? >> carol daly: no. >> lapook: what's this called? what i'm wearing on my wrist? what's the name of that? >> carol daly: i don't know. >> lapook: it's a wristwatch. >> carol daly: oh, yeah. >> lapook: that sound familiar? >> carol daly: yeah. >> mike daly: carol reached a point where she was not able to do anything for herself at all. she couldn't feed herself. couldn't go to the bathroom by herself. face me, okay? >> lapook: and mike had reached

the point where he simply couldn't take care of her by himself. so he hired a home care aide during the day, costing almost $40,000 a year. now, alzheimer's was hitting them financially, on top of mentally, and physically. what would you say the toll has been of this long journey on you? >> mike daly: i'm dying. i really think i am. the stress, they thought i had a heart attack to begin with. >> lapook: you had chest pains? >> mike daly: they wanted to put me in the hospital. i can't go to the hospital. all right, what do i do with carol? then she has anxiety attacks. part of the alzheimer's. >> lapook: anxiety attacks may be part of what's happening to you, too, it sounds like, if you had chest pain but it wasn't a heart attack. is that was it was? an anxiety attack? >> mike daly: i called it stress. don't move. >> lapook: according to the alzheimer's association, the vast majority of caregivers say their toughest challenge is emotional stress. i can still remember when you said, "no big deal, i can handle this."

>> mike daly: uh-huh, yeah. i think about that comment i made, and i said, what a jerk i was. >> lapook: well, not a-- not a jerk. but just, you were sort of near the beginning of your journey, and you didn't know. >> mike daly: you know, i thought this was it. you know, so she can't remember things. so i see people with dementia. they function normally. she can't walk. the impact on everybody else is enormous. >> lapook: one year later, 14 years since she was first diagnosed, carol was spending most of her days sitting silently, no longer able to understand questions. >> mike daly: we can't communicate. it's lonely. >> dan cohen: let me just get them so they go on nicely. >> lapook: but watch what happened when social worker dan cohen put headphones on carol and played some of her old favorites. ♪ ♪ ♪ ♪ >> ( mumbling )

>> lapook: the words aren't there, but the beat is. and the melody is, the melody is pretty good. in alzheimer's, older memories are usually the last to go. but even then, a faded, distant memory can sometimes be revived. >> cohen: and since the music we love is really tied to our emotional system, and our emotional system is still very much intact, that's what we're connecting and that's what still works. >> lapook: and it was tied to his emotional system, too. he was tearing up. >> mike daly: i think those tears were happy tears, knowing that she hasn't lost it all. it was like, wow. wow. >> lapook: but the wow did not last. when we met this past january, carol, now 74, was too far gone to react to music. oh, she's so changed. just since the last time i saw her. >> mike daly: uh-huh. >> lapook: and her pulse is as strong as can be, and regular, and i'm feeling it right now.

so, her heart seems strong, but she has so deteriorated. >> mike daly: stand up, carol. come on. >> lapook: earlier that morning, they'd shown us how hard it is to get carol ready for the day. what didn't you realize would happen? >> mike daly: that she becomes a vegetable. that's basically what i feel like she is now. >> lapook: mike is still too heavy. his blood pressure's too high, and a few months ago, his thoughts were too dark. >> mike daly: i'm ready to put the gun to my head. i really thought of suicide. >> lapook: really? >> mike daly: yeah. it got to that point. >> lapook: caregiving is really tough. >> mike daly: hardest job i ever had. >> lapook: and that's from a former new york city cop. but suicidal thoughts are not uncommon for people taking care of a family member with dementia.

mike hired more aides, so carol now has 24-hour help. it's draining his savings, but allowing him to get out of the house, and make new friends, and that's helping lift his depression. >> mike daly: i leave this at home, and when i go out, it's a new mike out there now. >> lapook: but at home, he worries that carol is in danger. has she fallen? >> mike daly: yes. >> lapook: she hasn't broken any bones yet? >> mike daly: no, just bruises. no. >> lapook: so now, despite years of telling us he wouldn't put carol in a nursing home... >> mike daly: i'm coming to the to the point where maybe a nursing home is the answer for her, her safety. >> lapook: ten days after that, and 53 years after their wedding day, mike did put carol in a nursing home. do you still love her? >> mike daly: i love carol who was carol. but now carol's not carol anymore.

>> lapook: when carol was still carol, that would have been the best time to discuss the kind of care-giving decisions mike daly eventually had to face alone. mike hopes that sharing such intimate details of their lives will help others be better prepared than they were. >> this cbs sports update is brought to you by the lincoln motor company. san antonio, texas. i'm bill macatee. andrew landry has had a win on the pga tour, the winner of the valero texas open at tpc san antonio inch nhl playoff action, pittsburgh advanced to the second round with an 8-5 win. the nba playoff, the bucks tied their series at two games apiece while the spurs stayed alive to force game five. for more news and highlights, go to cbs sports hq.comment

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(sound of footsteps) (sound of car door opening) (car door closes) (sound of engine starting) ♪ ♪ (sound of footsteps) (sound of car door opening)

(car door closes) (sound of engine starting) >> stahl: 50 seasons of "60 minutes." from april 2006: bob simon traveled to kenya to introduce us to dame daphne sheldrick and the orphanage she founded for abandoned elephants. >> daphne sheldrick: their tremendous capacity for caring is, i think, perhaps the most amazing thing about them, even at a very, very young age. they're sort of forgiveness, unselfishness. so you know, i often say, as i think i've said before, they have all the best attributes of us humans and not very many of the bad. >> simon: daphne and the keepers may run this place, officially, but it's the elephants who are

really in charge. they may be little, they may be orphans, but trust me... >> edwin lusichi: yeah. >> simon: ...they're not as little as they look. in fact, i feel like i'm in an elephant sandwich. >> lusichi: yes, you are. >> stahl: dame daphne sheldrick died earlier this month in nairobi. she was 83. i'm lesley stahl. we'll be back next week, with another edition of "60 minutes." anna and mark are heading into retirement... and a little nervous. but not so much about what market volatility may do to their retirement savings. that's because they have a shield annuity from brighthouse financial, which allows them to take advantage of growth opportunities in up markets, while maintaining a level of protection in down markets. so they can focus on new things like exotic snacks. talk with your advisor about shield annuities from brighthouse financial- established by metlife.

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captioning funded by cbs and ford. we go further, so you can. my name is dylan reinhart. not too long ago, i was an operative in the cia known as agent reinhart. when i left the agency and started teaching, i became professor reinhart. i wrote a book about abnormal behavior in criminals, which was so successful, a serial killer used it as clues for his murders. that's when the new york police department reached out to me to help catch him, which i did. so they hired me, and i became consultant reinhart. so now i'm working with this woman, detective lizzie needham of the homicide division, catching killers. looks like i need a new name. don't they call you professor psychopath? woman: hey, it's me. woman 2 (over phone): hey. i-i need a favor, and you're not gonna like it. uh-oh, what now? tell dad i can't meet. tell him i have a test and, uh, i need to study. why? what's going on? don't worry. i promise i'll...