Chinese Police Detain Artist, Activist Ai Weiwei

Aired: 4/4/2011 | 0:04:49 | Clip
Ai Weiwei, one of China's most famous artists and human rights activists, was detained on Sunday at the Beijing airport. His arrest comes as the Chinese government tries to prevent the spread of pro-democracy protests. Judy Woodruff has an excerpt from a Frontline documentary on Ai.