It's extremely important that we bring clarity to this...

It's extremely important that we bring clarity to this question of 'who's in charge' long in advance of an actual crisis, or else the potential for chaos and delay on the scene will be very real if, God forbid, we are actually confronted by one of these nightmare scenarios. So this is not an abstract argument, ... While the Defense Department will have the legal responsibility to assist civil authorities, when requested, in the event of a serious crisis -- and indeed has resources, troops, and capabilities that no other agency can duplicate -- the new rubric outlined in the National Response Plan clearly identifies the secretary of Homeland Security as the guy at the top making judgments about how the federal government will respond.