"You see who did Sept. 11 and the Towers—that's real Islam," said Zachariah Anani, a former Lebanese militia fighter. "The rest are not real Muslims."

Formerly "real Muslims," Anani, Walid Shoebat and Ibrahim Abdallah—the latter two were once affiliated with the Palestine Liberation Organization—have all renounced Islam and become fundamentalist Christians. How they arrived at their epiphanies was unclear, but now the three men, whose mission was once to kill Jews and die as martyrs, travel the U.S. preaching a doctrine of intolerance toward Islam and support of Israel. They speak wherever they're allowed—often in churches, to groups that know very little about the Quran and the Islamic civil code. Their presentation in Philadelphia was sponsored by Shoebat's Walid Shoebat Foundation, a Zionist advocacy group.

They say that this new crusade, along with their conversions, has placed them in personal jeopardy. Abdallah, citing threats to his safety, appeared only via video. The men asserted that Islam "is a cancer" the U.S. cultivates unknowingly.

"The most Islamic fundamentalism education I received was not in Palestine. America is ground zero for fundamentalism," said Shoebat, whose voice rose in a powerful crescendo as he railed against the idea of America pulling out of Iraq. "Pull your military out of Iraq and Islam will win."

He says the root of terrorism is not simply poverty or the fundamentalism it breeds; rather, it's the entire Islamic civil code.

Gordon Cucullu, a former Green Beret lieutenant colonel, moderated the presentation. As a conservative white Christian, he looked like most of the audience who, oddly enough, found large portions of the presentation humorous.

"Sports fans," he said, sounding a lot like Robert Duvall in The Great Santini, "we pretty well know ourselves, but we don't know our enemy."

By the end of the event, most of the audience seemed more aware of this "enemy."

"In listening to you talk tonight, I've come to the conclusion that there's no such thing as a moderate Muslim," said a man in the audience. Shoebat and Anani nodded in agreement.

Still, a lonely voice in the crowd wondered if there was room for moderation.

"Don't you think it would be more productive if your presentation included people who disagree with you?" he asked.

Shoebat didn't think so: "How can you argue with facts?"