Interestingly, I heard about a court case that was a pretty severe blow to them. There was a West Virginia mine that had required all of the employees to get the chip to clock in and out for their shift. One employee asked for a religious exemption and was fired. He sued. The mine's management argued his beliefs weren't accepted Christian doctrine. His union refused to fight for him. Eventually, the federal appeals court ruled that he had made a reasonable request based in an actual passage of the bible.
