People walk past a newspaper stand in Washington, DC, on May 2, 2011 with a front page news about the killing of al Qaeda leader Osama bin Laden by US forces under the direction of US President Barack Obama. Obama Monday hailed a great day for America after Osama bin Laden's death, but Pakistan faced tough questions over the terror kingpin's roomy hideout in a key garrison city. US officials meanwhile said that DNA testing on Bin Laden's corpse before it was buried at sea with Islamic rituals confirmed the identity of the world's most wanted terrorist, the mastermind of the September 11 attacks in 2001. (credit: JEWEL SAMAD/AFP/Getty Images)
Ever wondered what the cost of keeping America safe has been since 9/11? The Daily Beast has a rundown for you. Check it out!