I am a Jew, and I am a Rabbi, and I cherish - as do my people - the grandeur of the First Amendment. That amendment prevents, and properly so, the government from investigating the beliefs of any group that calls itself religious; but it does not prevent the government from investigating the activities of any group, whatever its name might be.
No man and no group in this country is above the law. Indeed, for 1000 years and more my people have lived with the Hebrew phrase, "נא דמלכותא דינא ." [Dina d'malkhuta dina] - "The law of the land is the law."
Unless that law is upheld and enforced, we all of us are victims and we Jews know this very well.