For discussions of everything that might be classed as ‘paranormal‘ - i.e. not currently accepted by our modern scientific paradigm.
Mr. Winter is havingi quite a time with his attempted publications. The reasons he lost didn't have to do with any anti information issue with the US government. Instead it appears to be a case of publishing someone else's writings. He lost his case, which means that somehow it was shown that he was not the originator of the writings.
This sounds like one of those cases where someone pitches a screenplay to a group and then one year later that group makes a movie on the same subject, without paying the screenplay writer.
The CIA wouldn't enforce these copyrights. The FBI would, theorectically.