Back to the unfolding scandal: While probing the emails from Broadwell to Kelley, according to several reports, the FBI uncovered explicit emails between Broadwell and Petraeus that revealed the affair, which apparently began after Petraeus left the military, two months into his tenure as CIA director.

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Former Chairman of the Joint Chiefs of Staff, Marine General Peter Pace, strayed far from the official "Don't Ask, Don't Tell" policy by labeling gays "immoral" in a March 2007 media interview, prompting a political firestorm that helped guarantee his tenure as the country's top military officer was relatively short.

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During her tenure as the Harvard Law dean, Kagan banned military recruiters from the campus.

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