new jobs, what do you say to that? >> that is a complete lie. many people in the camps are university professors, writers, poets. >> this is a story they don't want to get out. >> reporter: david stillwell is the u.s. assistant secretary of state for east asia and the pacific. >> the chinese government views this through the lens of terrorism, and they have said things like, well, the u.s. had a war or terror. that's what we're doing here. >> you can't lock up a whole group of people and somehow identify them as terrorists in advance. a terror event on your own people to prevent terrorism just, that doesn't make sense. >> if you could talk to your sister, what would you say to her now? >> i'm sorry. she's there because of me. but i want to tell her to stay strong, stay strong and believe that she will be free hopefully