In a time of increasingly bleak reports out of Iraq, the news that terrorist leader Abu Musab al-Zarqawi has finally been killed, along with several close aides, comes as welcome news to all Americans. More importantly, it should provide a much-needed boost of morale in Iraq as well, among our own troops and among the Iraqi people who have been al-Zarqawi's main victims. "Arguably over the last several years, no single person on this planet has had the blood of more innocent men, women and children on his hands than Zarqawi," is how Defense Secretary Donald Rumsfeld put it. "He...