Petraeus 'scandal' deployed
to push Libyagate offstage
The headline says nearly all, excepting the fact that the cooperation of major media is required for the bait and switch to work. BUT:

Lawmakers to press Benghazi probe
http://www.aim.org/guest-column/petraeus-resignation-wont-interfere-with-benghazi-probe-say-lawmakers/

The AIM writer says however that the House probers may change the witness list, calling someone else from the CIA to testify. A supplemental witness makes sense, but it makes no sense to refuse to take Petraeus's testimony merely because he was forced out over an indiscretion of the type common to mortals (would it have made sense to have refused to take Bill Clinton's testimony on some important matter because he'd had an affair with Monica Lewinsky?).