George W. Bush has publicly confessed that he ordered torture, thus violating the Convention Against Torture. He, Cheney, Rumseld, Rice and the other Principals must therefore be arrested and, unlike the thousands of detainees kidnapped by the U.S. since 9/11, arraigned and placed on trial.
Because the torture ordered by Bush and his cabinet directly resulted in death, they must additionally be charged with several counts of murder. Fifteen U.S. soldiers have been charged with the murders of two detainees at the U.S. airbase at Bagram, Afghanistan in 2002. They were following orders issued by their Commander-in-Chief and his Principals.
If Bush weren't president, he would face murder charges. The maximum sentence in a federal murder case is death.
The Supreme Court has never resolved the question of whether a sitting president can be arrested by civilian authorities. Even if he were charged and convicted, many legal experts say he could issue himself a pardon.