John Yoo has some thoughts on Hamdi and Rasul. Read the whole thing, but this will give you an idea:
"But despite the pleas of legal and media elites, the justices did not turn the clock back to Sept. 10, 2001. While the Court has unwisely injected itself into military matters, closer examination reveals that it has affirmed the administrations fundamental legal approach to the war on terrorism, and left it with sufficient flexibility to effectively prevail in the future.
To wit, the Court agreed that the U.S. is at war against the al Qaeda terrorist network and the Taliban militia that supports them. It agreed that Congress has authorized that war. Moreover, the justices implicitly recognized that the U.S. may use all of the tools of war to fight a new kind of enemy that has no territory, no population and no desire to spare innocent civilian life.
Taken as a whole, the Courts message is unmistakable: The days when terrorism was merely considered a law enforcement problem and our only forces were limited to the FBI, federal prosecutors and the criminal justice system will not be returning."