This wouldn't be a fear if the U.S. Government had been more concerned about protecting the rights of the people already within their borders than granting rights to those who were not citizens. The error in the argument of the Federal government at this point is making the argument that Islam is a "recognized" religion, unlike Nazism was not recognized as a legitimate religion during Hitler. Would the Maya or Aztec religion be recognized as a true or legitimate religion today if it were still practiced or would we not recognize it and not allow it to be practiced. Certainly, we would not allow a Mayan to practice their religion in all it's fullness to satisfy their god's thirst for blood, but there would be a threat always by those who held to the belief that Quetzalcoatl requires the heart and blood of victims to be satisfied. If were were honest we would realize that the real-life example that Mohammad left requires true believers in Mohammed's message to go and use force to cause the people in the land they're living to bow the knee to Allah. Churchill warned us of the example that Muslims are commanded to follow in Mohammad. He warned us most vehemently.