I didn't say everything here is "open and transparent". Far from it. There is the chance that the Warren Commission lied, and all those theorists are trying to find the truth. There is the chance that the Warren Commision report is spot on, and the conspiracy guys are all nuts. In either case my point is that all those people can openly question the 'Official' reports without fear of reprisals. Of course the conspiracy guys will tell you that many people involved died "mysteriously", but they still get to say it, and they do.
Soviet Union? Have you ever heard of this book?
http://www.amazon.com/The-Commissar-.../dp/0805052941
I own a copy and it's...interesting, to say the least.