The United States faces an increased threat of attack from al Qaeda, which will likely try to use battle-hardened associates in Iraq to strike inside the United States, an intelligence report warned on Tuesday. Released as the White House confronts mounting pressure in Congress to withdraw U.S. forces from Iraq, the document marked the first time that the 16-agency U.S. intelligence community has warned publicly that the Iraq war poses a near-term threat to the United States. Democrats seized on the findings to say the administration has mishandled national security and the Iraq war, while U.S. President George W. Bush...