President Bush has admitted for the first time that he has mismanaged the handling of Iraq after the fall of Baghdad. In a rare admission of a mistake, he told the New York Times that he had made a “miscalculation of what the conditions would be’’ in postwar Iraq. Since he appeared aboard the USS Abraham Lincoln on May 1, 2003 under a banner that read “Mission Accomplished” 828 U.S. troops have been killed in Iraq — six times as many as the number killed during so-called major combat operations. In addition more U.S. soldiers have now died in 2004 than all of last year in Iraq.