Coming from a certain european country, you never know what answer on the census might get you into trouble.
"What is your religious affiliation". Seems perfectly innocuous, but turned out to be retroactively fatal if your answer could be attributed to you by a certain foreign occupier in the 1940s .
Surely any such foreign occupier would just demand the unredacted data?
"What is your religious affiliation" makes absolutely no sense in a census exercise. IMO.
Asking about your religion on the census is against the law in the US:
no person shall be compelled to disclose information relative to his religious beliefs or to membership in a religious body.
https://www.congress.gov/94/statute/STATUTE-90/STATUTE-90-Pg...