Copycats?

Not sure whether it's nothing less than horrible that this has happened, or good that no one was killed. Both I guess.

The mayor of London, Ken Livingstone, cancelled his appointments. Appearing at tonight's news conference with Sir Ian, Mr Livingstone said: "It is not surprising that we have had another attempt to take life in London so rapidly after the first one," he said.

"Those who remember the terrorist campaigns of the 1970s, 80s and 90s will remember there were bombing attacks often just weeks apart."

So far, two people have been arrested - one in Downing Street and one in Great Scotland Yard in Whitehall - since the incidents this afternoon. However, police sources said it was unclear at this stage whether the two had any links to the explosions.

It certainly does not sound like these were planned and carried out by the same group who planned the bombings earlier this month; just seems like a different M.O. and significantly less destructive materials. Small favors, I know.

UPDATED: A day later, sounds like I had that last bit wrong. The bomb materials appear similar in destructiveness to the Madrid bombings, and the attacks were timed to synchronize as they did two weeks ago. Just a lucky break that London didn't suffer another bloody day.