WASHINGTON (AP) _ President Barack Obama says Osama bin Laden, the glowering mastermind behind the Sept. 11, 2001, terror attacks that killed thousands of Americans, was killed in an operation led by the United States. A small team of Americans carried out the attack and took custody of bin Laden’s remains, the president said Sunday in a dramatic late-night statement at the White House. A jubilant crowd gathered outside the White House as word spread of bin Laden’s death after a global manhunt that lasted nearly a decade.