"Oh well, 8,000 potential terrorist isn't bad."
Count among the ones they missed the girl who spent her high school years living with my BIL and SIL after her parents sent her to the U.S. For two years I was unaware that she was even muslim. She graduated from an American high school with honors, returned to Europe for college and vet school, and is now a veterinarian and researcher. I know this will surprise you, but the whole time she was here she failed to shoot anybody, blow anything up, or even threaten anybody.
They're called "sleepers".
She's probably testing the fatal dose rates of sarin and sending the info to Ayman al-Zawahiri.
Hats off to your BIL and SIL for helping our enemies.
If what I just wrote made you sad or angry,
it was probably just a joke.
I would not consider her a true koran abiding muslim any more than I would consider Timothy McVeigh a Christian.