Watch U.S. Senator and Democratic presidential candidate Barack Obama answer questions from YouTube. The Senator talks about technology and foreign policy, and plays a round of "Hope or Nope."Thanks to everyone who submitted questions for the interview.Question on pakistan:http://youtube.com/watch?v=oozY-qrkuxEQuestion on Africa:http://youtube.com/khayavQuestion themes for "Hope or Nope" from users:j0eg0d, urbanwarrior, JSResponds, AmericanWayne, dooglio.To learn more about Senator Obama, go to his YouTube You Choose '08 channel at:http://youtube.com/BarackObamadotcom