"FILE -- In an April 28, 2011 file photo Marine Corps Lt. Gen. John Allen, speaks in the East Room of the White House in Washington.  The sex scandal that led to CIA Director David Petraeus' downfall widened Tuesday with word the top U.S. commander in Afghanistan is under investigation for thousands of alleged ""inappropriate communications"" with another woman involved in the case.  (AP Photo/Charles Dharapak/file)"
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