At least 6 explosions occurred in the London underground and one double-decker bus exploded this morning. From what I heard on the news, Al-Qaeda has claimed responsibility and said that Denmark and Italy will be next if they don't withdraw their troops from Afghanistan and Iraq.
This is one of the most ridiculous attacks I've heard of. Support for the war is floundering. Attacking one of the participants at home can't do anything but strengthen their resolve. I seem to remember a Churchill impersonator (Churchill was unavailable at the time) saying "We will fight them on the beaches. We will fight them in the streets" or something to that effect.
This attack was senseless.