I've been asking not only General McChrystal, but all of our commanders who are familiar with the situation, as well as our civilian folks on the ground, a lot of questions that, until they're answered, may -- may create a situation in which we resource something based on faulty premises ... I want to make sure that we have tested all the assumptions that we're making before we send young men and women into harm's way, that if we are sending additional troops that the prospects of a functioning Afghan government are enhanced, that the prospects of al Qaeda being able to attack the U.S. Homeland are reduced.