Forty names ring out above the crash site...the names of 40 passengers and crew aboard United Flight 93 on September 11, 2001.<br/> Relatives shed tears during the ceremony marking the ten year anniversary of the crash.<br/> Flight 93 fell from the sky into a Pennsylvania field after passengers rushed the cockpit, struggling to take control from hijackers who investigators believe intended to crash the plane into the U.S. Capitol or the White House.<br/> President Barack Obama and First Lady Michelle walked by the boulder that sits at the point of impact and placed a wreath of flowers at the newly dedicated memorial in Shanksville, where names of the dead are engraved in marble.<br/> Katharine Jackson, Reuters.
