China's move to block YouTube has been criticised by a leading advocacy group that promotes constitutional liberties in the digital age. The Centre for Democracy and Technology told the BBC: "China's actions fail to live up to international norms." The video sharing site has been off limits in China since Monday. "China's apparent blocking of YouTube is at odds with the rule of law and the right to freedom of expression," said CDT president Leslie Harris. "Anytime a country limits or takes down content online , it must be forthright and specific about its actions and do so only in...