Again?

Maybe.  London has had explosions on the Tube and on a bus again today.  Speculation is this may be copycat, and not Al Qaeda.

In a more optimistic vein, reports are that the Pakistanis have picked up the man responsible for masterminding the attacks on 7-7, using cell phone records to nail him.

UPDATE: Amateurish, maybe.  But not to be taken lightly at all, I hope.

Keith Burnet, an expert at the Royal Institute for International Affairs in London, also said the blasts appeared to be part of a "copycat exercise, carried out by people not as sophisticated as the bombers who struck on July 7."

Burnet said there was little that Britain's security forces could do to thwart such attacks, short of searching every passenger on the capital's huge network of buses and trains.

That last line is the cause for concern, and the reason why work against terrorism must continue.