"It is not a matter of if there will be an attack, but how bad the attack will be," an intelligence official told ABCNews.com.

Okay, there are a couple of things about this report I find interesting. First, it's 100% US officials leaking information purportedly given them by the Brits. Mind you, the Brits are still pissed off at us for botching their work on the "gel-bombers" and now we're leaking data?

One of two things is going to happen/is happening here. First is the possibility that this is all bullshit designed to scare the crap out of us at Christmas just like they've pulled every year and there is actually nothing going on. The second possibility is, there really IS something going on and by leaking it we've just blown yet another operation the Brits have going, and British intel is going to tell us to get stuffed.

There are other possibilities, but those seem to be at the top of the food chain.

And oh yes, lest I forget, if you want to see terror in action, read the reader comments below the fold. Good lord.

The Blotter: Attack expected in London?