Voodoo, Santeria, Satanism, Scientology, Heavens Gate, BDSM etc are all allowed here. There isn't an 'illegal' religion. There are illegal behaviors, but no religion is against the law.
Janet Reno (only known antidote for Viagra) must not have gotten the message.
If we constantly let the left, MSM, demon-rats define the debate by saying this terrorist group is a religion then we are spinning our wheels. Remove the incorrectly applied term of religion to this band of world terrorists and the 1st Amendment does not get in the way.