WaPo is reporting:
The FBI has found between 20,000 and 30,000 pages of "potentially inappropriate" e-mails between Gen. John R. Allen and Jill Kelley, the 37-year-old Tampa woman allegedly threatened by David Petraeus’s mistress.
The FBI first notified the Pentagon of its investigation into Allen’s communications with Kelley on Sunday evening, according to the senior defense official who spoke on condition of anonymity to discuss details of the ongoing case.
In response, Pentagon chief Leon E. Panetta referred the investigation to the Defense Department’s Inspector General for further review, according to a statement released by Panetta early Tuesday as he was traveling to Australia...
In his statement, Panetta said Allen would remain as commander of U.S. and NATO forces in Afghanistan for now, “while the matter is under investigation and before the facts are determined.”
But his time there may be short. Panetta has also asked the Senate to expedite the confirmation of his likely successor, Marine Gen. Joseph Dunford.
Obama had nominated Dunford last month to replace Allen...
The senior defense official said the voluminous collection of emails sent between Allen and Kelley occurred between 2010 and this year, but did not give details. The official also declined to say whether Allen sent or received any of the messages from his military or government email accounts, or if classified material was compromised.