In this April 2008 photo, Terry Crenshaw, warden's assistant at the Oklahoma State Penitentiary, walks past the gurney in the execution chamber in McAlester, Okla. Oklahoma is one of the few states that use pentobarbital in the lethal injection procedure. AP hide caption

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Inspector General Glenn Fine (right) consults with staff before testifying on the firing of nine U.S. attorneys during a House Judiciary panel hearing in 2008. Pablo Martinez Monsivais/AP hide caption

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The Illinois Supreme Court ruled unanimously Thursday that former White House Chief of Staff Rahm Emanuel can run as a candidate for mayor in next month's Chicago elections. M. Spencer Green/AP hide caption

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Las Vegas police stand guard outside Harrah's hotel-casino in Las Vegas on Feb. 21, 2006. As officer Norman Jahn recalls, police arrested the suspected gunman without firing a shot. Jae C. Hong/AP hide caption

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Ahmed Khalfan Ghailani was captured in Pakistan in 2004 and later interrogated overseas at a secret CIA-run camp. U.S. District Attorney's Office hide caption

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