If you'd like to be on or off, please FR mail me.
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Not creeping in, well established
Indeed. David Horowitz wrote a book about this subject in 2004.
https://www.amazon.com/Unholy-Alliance-Radical-Islam-American/dp/089526076X/ref=sr_1_6?ie=UTF8&qid=1499772944&sr=8-6&keywords=david+horowitz