From the article in The Guardian:
Four days after assuming the presidency, he was consulted by US commanders before they launched the two attacks. Although Obama has abandoned many of the "war on terror" policies of George Bush while he was president, he is not retreating from the hunt for Osama bin Laden and other al-Qaida leaders
Osama bin Laden is dead. He has been dead for years. He was a hospitalized dialysis patient in the U.S. only weeks before 9/11; dialysis-dependent patients can't live in caves because there's no electricity for the frigging dialysis machine.
But hey, they need their Emmanuel Goldstein, right?