<p>November 3, 2003 -- The helicopter shootdown that killed at least 15 Americans sadly recalls another chopper downing where gleeful enemies danced at the deaths of U.S. troops - portrayed in the movie "Black Hawk Down" - and which drove then-President Bill Clinton to hastily retreat from Somalia. To President Bush's team and many other analysts, there's a clear line from that Somalia retreat to 9/11, because, they believe, terrorists concluded from Somalia that the world's sole superpower is soft and will retreat in the face of attack and losses.</p>