"If my suspicions are correct, this case involves Russia in something far worse than the murder of a Putin critic."
Nobody's biting - if it walks and talks like a duck - guess what?
This is another in a LONG line of enemies of the Kremlin that have been liquidated - well over 100 million by now.
That's too bad. Well, I pretty much have it narrowed down to either Litvinenko was setup by Gordievsky (probably a phony defector) and co., or he died accidentally in a smuggling operation. Time will tell (hopefully).