I can't comment on the material you linked. Anything is possible there....
However, please be just a little more informative when you post a link. Some of this gang are too young to remember Philby or Oswald, and some of us are too old to take the time to visit a link without more info about what's in it
Mike, this isn't a dig, or even an official reprimand. Just a gentle hint. I have to remind people once in a while
.... Don't stop!