Osama Bin Laden Raid: Al Qaeda 'Playbook' Revealed

A bulletin issued Thursday by the FBI and the Department of Homeland Security and obtained by ABC News describes the terror organization's chilling desire to derail a train on the tenth anniversary of the 9/11 terror attacks. "As of February 2010, al-Qa'ida was allegedly contemplating conducting an operation against trains at an unspecified location in the United States on the 10th anniversary of September 11, 2001," the document reads, using an alternate spelling for bin Laden's terror group. "As one option, al-Qa'ida was looking into trying to tip a train by tampering with the rails so that the train would fall off the track at either a valley or a bridge."