article_snippet: Chai Jing's investigative documentary - which has already attracted unprecedented attention from China's officials - explores the controversial topic of smog in China, one of the most widespread issues in China.
article_snippet: Chai Jing, 39, has made a hard-hitting film, exploring the controversial topic of smog in China, one of the most widespread issues in China .
article_snippet: In a hard-hitting film, Ms Chai, a former anchor at China Central Television, the Communist Party's mouthpiece, tells how her daughter made the documentary to tell her daughter 'what is smog, where smog comes from and what we shall do with it'.
highlights_snippet: Chai Jing, 39, made documentary about air pollution for her sick daughter .
  