Can Bush's Lawyers Be Tried for War Crimes?

Abuses of prisoners at Abu Ghraib were revealed in photographs that are now infamous worldwide. Just seven people have been disciplined, all soldiers, none of whom rose above the rank of sergeant. Former sergeant Javal Davis, who spent four months as a guard at the prison, pleaded guilty to assault and served three months in a military brig. Yet, there's ample evidence of much worse treatment, possibly torture. The House Judiciary Committee has subpoenaed Vice President Cheney's Chief of Staff and other lawyers who approved harsh tactics against detainees captured after 9/11. Were they doing what was necessary to prevent another attack or should they be put on trial? What were the roles of Donald Rumsfeld and President Bush?