My wife tells me that a guy broke into a house in DC, outside of which was parked a car clearly labeled: Police -- Executive Protection Service. (These are the guys who protect visiting heads of state and such folks.)

The cop ordered the intruder to stop and put up his hands, the guy pulled a weapon, the cop shot him dead.

About the London carbombs: I'm very, very glad they were found and rendered harmless. I hope that whoever planted them is caught and get what they so richly deserve.