We've got sevewral nests of them here in Northern Virginia, just across the Potomoac River from DC.
Paul Sperry's written a fairly comprehensive book about them:
Click image above for Sperry's web site
Excerpt: FrontPageMagazine.com interview, April 12, 2005
FP: Didn't the FBI just leak an internal report saying they couldn't find any evidence of al-Qaida sleeper cells in America?
Sperry: Yeah, and that's also what they said before 9/11. Fact is, they don't really know because they're not letting agents look hard enough in the Muslim community and mosques—they're putting them through Muslim sensitivity training instead. One FBI veteran says our knowledge of what's really going on in the Muslim community is a 20 on a scale of 100. But here's what we do know: Khalid Sheikh Mohammed, the 9/11 mastermind, was caught with a notebook full of U.S. zip codes, and he's not talking about them. He'll talk about everything else but that. Investigators think he's protecting sleeper cells for a future 9/11. So we have to get to them before they get to us. Unfortunately the FBI appears to be more concerned about offending Muslim groups than infiltrating them. So while they're doing a damn good job of penetrating our institutions and culture, we've hardly made a dent in theirs.
[snip]
"For instance, there's a mosque going up in my own community in Fairfax County that I found out is tied to a Pakistani terrorist who gunned down CIA employees last decade. It took just a few days to look up the land records, and then research the trustees and find the connection. The first red flag was the deed itself, which was notarized in Lahore, Pakistan. Pakistan is a hotbed of anti-American terrorism. This is an example of a Wahhabi mosque that has no business being in business anywhere in America. Ask any FBI case agent who has investigated hardline Wahhabi mosques and they'll tell you they are nothing but sanctuaries of terror. Wahhabi mosques such as Dar al-Hijrah just outside Washington, which gave aid and comfort to the hijackers, act as hubs in the terror support network. Read my expose on it—"The 9/11 Mosque"—and the related chapter—"The 9/11 Imam" (and go to sperryfiles.com to see related classified documents)—and you'll see that the fish rots from the head down. It's no coincidence that terrorists show up at these mosques. The leaders of the mosques attract them. It's no coincidence that money is raised for violent jihad at these mosques. The leadership solicits it. It's not just a few bad apples that stumble into these places of worship. It's an entire farm system that nourishes them. Arm yourself with the facts."
