After an incredibly candid interview with Rolling Stone, General McChrystal, who headed the U.S.'s war efforts in Afghanistan, offered his resignation today (as predicted) and President Obama accepted it. McChrystal was critical of the administration's actions in the interview (Rolling Stone's journalist spent a lot of time with the general, partly thanks to the ash-spewing Icelandic volcano) and he admitted to White House officials that he "compromised the mission." Now General David Petraeus, the head of Central Command, will take over. Last December, Obama said that he wanted to start withdrawing by July 2011.