Update: Still don't believe American boots on the ground and birds in the sky in and over Iraq have anything to do with US national security? Take a look what the elimination of Abu Musab al-Zarqawi yielded.
Update: Eli Lake sources the Al Qaeda in Iraq plot.
The head of the Defense Intelligence Agency, General Michael Maples, told both the House and Senate intelligence committees this month: "Documents captured in a raid on an Al Qaeda in Iraq safe house in Iraq revealed AQI was planning terrorist operations in the U.S. The disrupted plots underscore both the accomplishments achieved in union with our partners in the war on terrorism and the continuing danger posed by Al Qaeda. Despite being forced to decentralize its network, Al Qaeda retains the ability to organize complex, mass casualty attacks and inspire others."