How can a federal government site be copyrighted? And, copyrighted by a domain name nonetheless. I worked on a project once with the national park service. T

How can a federal government site be copyrighted? And, copyrighted by a domain name nonetheless. I worked on a project once with the national park service. Their Office of General Council or whatever its called didn't want to agree to make their metadata on https://npgallery.nps.gov https://npgallery.nps.gov available to use with a CC0 license for use in https://dp.la/ https://dp.la/ . Sure, the images might not have been taken by federal employees, but why try to assert copyright ownership in the metadata? Eventually they agreed for one collection, but they have lots of cool content on there from California parks we would like to put on https://calisphere.org https://calisphere.org . The stuff they have up at Clemson has CC0 metadata, and the rights info for the content is pretty clearly marked https://openparksnetwork.org/about/opn-rights/ https://openparksnetwork.org/about/opn-rights/