for suleman that was enough to get out on the etst i chose suleman, because there is a misconception perhaps thaot people with nothing to lose noe the ones who take to the streets, but that'often the case. >> brangham: as you document in the book, it seemed apparent to both sides, to the protesters and thgovernment, that right away this was a very serious matter, this was no idle iotest. >> no was exestem cell research from the very ginning. protesters knew when they went out on the streets, lie one of the protest, told me, we will be hunted. they will be hunted if they don't succeed, if they lose. and the regime knew it was also a fight for its survil. >> brangham: the way you tell this story is threw en door so different characters. and you toggle between them in time, chonologically, and'm just curious, when you set out to do this, did you know thawat how you would tell this story, through so many different vignettes of so many different people. i knew i wanted to show how history shaped people d how people shaped history.l al these differing elements of their uprising were happen