"the US ambassador to Iraq -- has warned of a possible violent backlash to the killing of Al-Qaeda militant Abu Musab al-Zarqawi"
Yes, if we had just left him alone, we could have enjoyed the safer feeling of daily car bombs, beheadings, EID's, and other general mayhem. But now that the U.S. has made the bold move of killing him,,, well things may get out of hand.