For many Americans, he had become the epitome of evil. Now, 10 years after the 9-11 attacks, U.S. forces finally found al Qaeda leader Osama Bin Laden in Pakistan – and killed him in a firefight. As the news spread last night, there were chants of “U.S.A.” at ballgames and cheers from a youthful crowd that gathered at the White House. But U.S. officials and experts on terrorism warn that the threat Bin Laden did so much to create won’t end with his violent demise. In this hour, we’ll discuss why it took so long to find Bin Laden, how the operation finally succeeded – and what’s ahead in the battle against terrorism.