Army general cleared in Petraeus case

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    FILE - In this Feb. 1, 2009 file photo, Gen. David Petraeus, commander U.S. Central Command, left, stands with his wife Holly before the NFL Super Bowl XLIII football game between the Arizona Cardinals and the Pittsburgh Steelers in Tampa, Fla. Gen. Petraeus, the retired four-star general who led the U.S. military campaigns in Iraq and Afghanistan, resigned Friday, Nov. 9, 2012 as director of the CIA after admitting he had an extramarital affair. (AP Photo/David J. Phillip, File)

    FILE - In this Feb. 1, 2009 file photo, Gen. David Petraeus, commander U.S. Central Command, left, stands with his wife Holly before the NFL Super Bowl XLIII football game between the Arizona Cardinals and the Pittsburgh Steelers in Tampa, Fla. Gen. Petraeus, the retired four-star general who led the U.S. military campaigns in Iraq and Afghanistan, resigned Friday, Nov. 9, 2012 as director of the CIA after admitting he had an extramarital affair. (AP Photo/David J. Phillip, File)

    A Pentagon investigation has cleared Gen. John Allen, the top U.S.

    commander in Afghanistan, of professional misconduct in exchanging

    emails with a civilian woman linked to the sex scandal that led retired

    Gen. David Petraeus to resign as CIA director. The swiftly unfolding drama  unearthed a web of intrigue, politics, and, yes, email. Here, a who’s who of the scandal.