Six gas workers have gone on trial in China over a well explosion in December 2003 which killed 243 people. Some 9,000 people had to be treated after the blast near Chongqing city, which spewed toxic fumes over several mountain villages. Investigators blamed the blow-out on a drilling crew’s negligence, and the six men are accused of dereliction of duty. The trial, at a court in Chongqing, is expected to last for three days, according to Xinhua news agency. The defendants range in position from former chief engineer to drill operator at the Chuandongbei gas field, according to Xinhua.Full Story