Why do you think it is quiet?
I believe these guys are in an operational phase.
Laying low.
I've had quiet gratitude mingled with astonishment that there have been no more Al Quada attacks in the US so far ... important dates have come and gone.
What I'm thinking is that their best and brightest are being kept busy in Iraq, or are bottled up in caves by the US-Pakistani forces.
But ... I don't think we need to feel too relieved. I still think they'll hit US if and when they can.