That's not going to happen.
And to borrow from another thread, what will stop a future tyrannical administration from using that policy on other groups that object to it?
This is nothing new. Way back in the original Clinton regime, Attorney General Janet Reno said that IF a person believes in the Second Coming of Christ, attended Church on even a semi regular basis and owned a gun, they were automatically suspect and a potential target of intervention by the Federal Government.
Even today, putting progun slogans on your vehicle in the form of bumper stickers can get you stopped and questioned in many states like Maryland and New Jersey. Even in Louisiana, or so I hear in certain parishes that border New Orleans.
Using religious affiliation as a test for terrorism spawned by American citizens is just a way to focus law enforcement surveillance.