Petraeusgate drags in Gen. John R. Allen, the commander of U.S. and NATO troops in Afghanistan.

"According to a senior U.S. defense official..."

... the FBI has uncovered between 20,000 and 30,000 documents — most of them e-mails — of 'potentially inappropriate'communication between Allen and Jill Kelley, the 37-year-old Tampa woman whose report of harrassment by a person who turned out to be Petraeus’s mistress ultimately led to Petraeus’s downfall....

The scrutiny of Allen’s personal behavior extends a remarkable string of failures and misconduct allegations that have dogged the last four commanders of the Afghan war. Petraeus took the job in 2010, after President Obama fired Army Gen. Stanley McChrystal for cooperating with a Rolling Stone profile that quoted McChrystal’s aides as mocking the president, Vice President Biden and other civilian leaders. 

A chain of events set in motion by the unignorable insult "Bite Me"...

“Are you asking about Vice President Biden?” McChrystal says with a laugh. “Who’s that?”

“Biden?” suggests a top adviser. “Did you say: Bite me?”