I wonder if it's possible for e.g. the Mormon Church to run a DNA program to be able to protect the data and identities under the 1st Amendment, similar to what the Catholic Church has done with pedophile records.
It would certainly help if the LDS Church was headquartered in its own sovereign nation but I think it's trickier here in the US. Though it would certainly make for an interesting test of freedom of religion if it ever came down to it.