Julian Borger in Washington
Vice-president Dick Cheney's burden on the Bush administration grew heavier yesterday after a former senior US state department official said he could be guilty of a war crime over the abuse of prisoners.
Lawrence Wilkerson, who served as chief of staff to secretary of state Colin Powell from 2 002 to 2005, singled out Mr Cheney in a wide-ranging political assault on the BBC's Today programme.
Mr Wilkerson said that in an internal administration debate over whether to abide by the Geneva conventions in the treatment of detainees, Mr Cheney led the argument "that essentially wanted to do away with all restrictions".