It seemed strange at the time, and it continues to seem strange: the radical Left in Europe (and the U.S.) and the Islamists fundamentalists in Iran were in effective alliance at the time of the Iranian revolution. The ramifications are felt today, for sure.
Nir Boms and Shayan Arya have a useful, if not exhaustive, analysis.
Today's news carries stories of progressive outrage that the Obama Administration obtained records of AP phone messages in order to track down a leak about Yemen Islamist terrorists. Conservatives might want to tread carefully. The net cast by DOJ was very wide, raising questions of propriety. On the other hand, does the government have no defense against leakers who endanger national security? Why support the Left in this cause?