Well, the hardest thing to do, as we know from our own experience on 9/11 is protect everything all the time.

But the key shift in focus will be from counter-insurgency operations to more and more cooperation with Iraqi security forces and to building Iraqi security capacity.

We've got to ensure that the quality and the capability of these forces will be good enough to withstand the challenges that the insurgents and the terrorists will present to the new Iraqi government.

Oh, the transition concerns me because as we move towards an important political event, it's clear to me that the terrorists and insurgents will move as hard as they can to disrupt this process.

Undoubtedly, there are members of the former regime that are cooperating in some fashion and then there are extremists that are within Iraq that are cooperating with them.

But my Arabic is pretty good. It's good enough to have conversations with people, to understand what they say, to understand what they're feeling.

And so I think that if the person has the funds, the network, and the equipment to do this, and also the experience, which is the key factor, then they can be quite deadly.