Chinese President Hu Jintao changed plans to attend a summit of major economic powers in Italy, instead returning home to address ethnic violence raking northwestern China, state-run media reported Wednesday. Tensions have been simmering in Urumqi, the capital of China’s far-west Xinjiang region, where violent demonstrations over the weekend have left at least 156 people dead and more than 1,000 injured. The unrest in Urumqi was brought under control with a massive presence of soldiers and anti-riot squads, the government said Tuesday
