The US didn't interfere with the rise of anti-government jihadist groups in Syria that finally degenerated into Islamic State, claims the former head of America's Defense Intelligence Agency, backing a secret 2012 memo predicting their rise. An interview with retired Lieutenant General Michael Flynn, former head of the Defense Intelligence Agency (DIA), given to Al Jazeera's Mehdi Hasan, confirms earlier suspicions that Washington was monitoring jihadist groups emerging as opposition in Syria. General Flynn dismissed Al Jazeera's supposition that the US administration "turned a blind eye" to the DIA's analysis. Flynn believes the US government didn't listen to his agency on purpose. "I think it was a decision. I think it was a willful decision," the former DIA chief said. The classified DIA report presented in August 2012, stated that "the Salafist, the Muslim Brotherhood, and AQI [Al- Qaeda in Iraq] are the major forces driving the insurgency in Syria," being supported by "the West, Gulf countries and Turkey." The document recently declassified through the Freedom of Information Act (FOIA), analyses the situation in Syria in the summer of 2012 and predicts: "If the situation unravels, there is the possibility of establishing a declared or undeclared Salafist principality in eastern Syria... and this is exactly what the supporting powers to the opposition want, in order to isolate the Syrian regime." The report warns of "dire consequences" of this scenario, because it would allow Al-Qaeda to regain its positions in Iraq and unify the jihadist Sunni forces in Iraq, Syria and the rest of the Sunnis in the Arab world against all other Muslim minorities they consider dissenters.