'CIA chief Petraeus' resignation not just about affair' (VIDEO)

One of America's best known military leaders, and CIA head David Petraeus, has abruptly announced his resignation. Stepping down, Petraeus admitted to an extramarital affair, saying he was guilty of "unacceptable" behavior. Ex-military intelligence officer, Lieutenant-Colonel Tony Shaffer told RT there's more behind the resignation than just moral issues.