My, how times change. It used to be that you could play "Money" by Pink Floyd or "Who Are You" by the Who uncensored. Now both of those songs are edited. A CC station in another market cut a word for "cat" that starts with "p" out of the Ted Nugent song "Cat Scratch Fever"--first time I ever heard that done (and I had to edit this post because RI doesn't like it either).
Although River is now playing the full, uncensored, album length version of Lou Reed's "Walk On The Wild Side", the version that talks about someone not losing their head. Hadn't heard that version on the radio in a while.
One thing that's interesting is how edits change over time. Charlie Daniels' "Uneasy Rider" used to have the "asses" bleeped, now that passes but the word that rhymes with "flag" ("long-haired, hippie-type, pinko...") gets cut.