The End of American Jewry's Golden Era
Pipes quotes a moderate moslem in America, who says that the extremists have taken over 80% of American mosques.
"...it is important to understand the motivations and world of thought of extremist Muslims. Pipes defines an Islamist as one who believes Islam is the solution to every problem. "In America, an Islamist would be somebody who wants to replace the constitution with the Qur'an.2 It is a totalitarian movement that has much in common with fascism and Marxism-Leninism." He estimates that about 10-15 percent of Muslims in the world are Islamists, which is tantamount to well over a hundred million people. Pipes adds that the percentage is probably in the same order of magnitude among U.S. Muslims."
"...Pipes in particular expresses regrets "that there are few voices of moderate Islam. They are often intimidated, not well organized, and in retreat." He believes militant Islam has to be destroyed and marginalized like fascism and communism were, and sees this as a process that may take several decades. Part of this effort, he says, is assisting those who want to construct a moderate, anti-Islamist version of Islam."
My opinion - I think Penn Station and the Houston refineries are at the top of their list