^^^Perhaps an identity card system for everyone, with an indication of religious affiliation would be the best idea. I've mentioned this before - I don't mind and I can't think most people would.
Me, white, ethnicity British/Celtic, born in England and Christian, sub-section mainstream (very broad) C. of E.. There, what is so hard? They can have my fingerprint and eyeball print if they want.
We must accept that we are at a strange sort of war. People want to kill us, so we have to go into places we don't want to go. :(