Of course there are converts to Islam in the West. Unfortunately some of them become extremists too. Some examples are John Walker Lindh, and recently someone in SoCal (forgot his name) who began making videotaped terrorist threats about attacking Los Angeles. A good article but I find the last part a bit unsettling:
When I asked Vincent what he thought about al-Yaqoubis statement, he answered, with a touch of defiance, that he felt just fine about it. "I do wish the American troops would be defeated," he told me, adding, "Im a Muslim first, and I just live in this country." (If he could find a bumper sticker that read "AGAINST THE TROOPS," he said, hed put it on his cab.) And were he ever to find himself in the Middle East, lets say Iraq, would he fight against American soldiers? "If there was a jihad," he replied evenly, "I dont see how I could not join in."
"Look Lois, the two symbols of the Republican Party: an elephant, and a big fat white guy who is threatened by change."