A passersby (L) argues with Iraqi war supporters near the White House in Washington, March 15, 2004. The war against Iraq was the right action to take because Saddam Hussein posed an 'urgent' threat, U.S. officials said on Sunday, as they defended the U.S.-led invasion on its first anniversary. The Bush administration, a year after the March U.S.-led invasion, is dogged by questions of whether it exaggerated the threat from Iraq to gather support for the war, as no stockpiles of biological or chemical weapons have been found. REUTERS/Yuri Gripas