YouTube is super weird. I had uploaded some audio cassette tapes that I had found at my grandma's. She lived near a nuclear power plant and when the facility was built in the 80s they had handed out audio casettes to people in the area with information about what to do in emergencies, who to call for information, etc. I digitized the cassettes and put them on YouTube and they were taken down within a day. No idea why, never given a reason. It's public information as it was handed out by power plant and city government.