What's crazy is that these groups, because they are a little bit more low key than Al Qaeda, they have been able to operate, in Pakistan especially, without hindrance.

If I had a nickel for every No. 2 and Nov. 3 they've arrested or killed in Iraq and Afghanistan , I'd be a millionaire.

I think it's an ominous sign. Whenever there's an attack of this scale going on in London -- it's not just a British thing, it's a U.S. thing too, because most of the time when al Qaeda strikes, it tends to strike in multiple, simultaneous attacks.

He's someone who's perfectly fluent in English, in Urdu, in Arabic.

Steer clear of misleading and irrelevant hierarchical representations of non-hierarchical terrorist groups.

Why would an Iraqi group release biographies of foreign fighters?

It's a positive sign that more hostages were freed than were killed (in March), but it's also a reminder that being an American in Iraq is still a very dangerous position to be in.

Technology is as much a part of their lives as it is part of our lives.