"Make sure this is accomplished."
That's what Rumsfeld wrote on a memo that deliberately authorized violations of the Geneva convention in Abu Ghraib.
A lot of Republicans bristle at the concept of international law. With people like Rumsfeld and (ironically, but not coincidentally) UN Ambassador Bolton, it seems their primary purpose is to take advantage of international crises or tragedies by finding courses of action that can't happen because international law is "too restrictive". The goal with a move like this is to get ordinary people who are scared or just plain dumb to agree that we have to break international law in order to fight terrorism, thus creating mass support for anti-UN policies. If the international community doesn't react, it also sets a precedent that the action taken is acceptable.