. >> cunard is a proud supporter of public television. the world awaits. a world of flavor, diverse destinations, and immersive experiences. a world of leisure and british style. all with white star service. >> actually, you do not need vision to do most things in life. it is exciting to be part of a team driving this technology forward. i think that is the most rewarding thing. people who know, know bdo. >> the ford foundation, working with visionaries on the front lines of social change worldwide. and the ongoing support of these institutions. and friends of the newshour. this program was made possible by the corporation for public broadcasting and by contributions to your pbs station from viewers like you. thank you. [captioning performed by the national captioning institute, which is responsle for its caption content and accuracy.] >> this is the "pbs newshour" newshour west from weta studios , in washington, and in the west, from the walter cronkite school of journalism at arizona state university. >> you're watching pbs. wow, you get to watch all you