From 1989 to '1984': Generation Tiananmen lament China's descent

Thirty years after they fled the bullets and tanks, Tiananmen exiles say their dream of returning to a democratic China are more distant than ever as their homeland descends further into authoritarianism and state surveillance. Zhou Fengsuo has always erred on the side of optimism. Five years ago, to mark the 25th anniversary of Beijing's deadly crackdown, he took advantage of a 72-hour transit visa to sneak back into China on his American passport.