Don't go around saying the world owes you a living. The world owes you nothing. It was here first.
Ayman Zawahiri, Osama bin Laden's deputy, as well as Abu Musab Zarqawi, have made it quite clear in their internal propaganda that they cannot win unless they can drive the Americans out. And they know that they can't do that there, so they've brought the battlefield to the halls of Congress.