Media demands Beijing to come clean on pollution

Public anger in China at dangerous levels of air pollution, which has blanketed Beijing in acrid smog, has spread as state media editorials questioned official transparency and the nation's robust development. State media on Monday joined internet users in calling for a re-evaluation of China's modernisation process, which has seen rapid urbanisation and economic development achieved at the expense of the environment. Al Jazeera's Steve Chao reports from Hong Kong