MANNHEIM, Germany (Reuters) - A U.S. soldier at the center of the Iraqi prisoner abuse scandal wants his pending court martial to be moved from Baghdad as he believes he has no chance of a fair trial there, his lawyers said on Monday. Specialist Charles Graner and three others are accused of sexually humiliating and, in some cases, beating detainees at Iraq's notorious Abu Ghraib prison. Photos of them tormenting naked Iraqis aroused worldwide outrage when they emerged in April and sparked criticism that sweeping U.S. anti-terror policies had encouraged the abuses. Graner, 35, who faces the most serious accusations...