In an interview with Steve Kroft for this Sunday's "60 Minutes," President Obama says he won't release post-mortem images of Osama bin Laden taken to prove his death. "We don't trot out this stuff as trophies," Mr. Obama said. The president told Kroft he saw the photos and knew that bin Laden had been killed. "We discussed this internally," he said. "Keep in mind, we are absolutely certain that this was him. We've done DNA sampling and testing. And so there is no doubt that we killed Osama bin Laden." "We don't need to spike the football...given the graphic nature...