The (London) Times was reporting today that even some official Russian government spokespeople have been less than supportive of these guys and their stories, eg leaving open questions about their credibility.
I'm truly disgusted by this. Russia can simply assassinate someone on UK soil and literally nothing happens but some stern words. Utterly utterly appalling.
The link is clear. The question is what will the UK do about it? Punishment for these individuals is largely irrelevant because their identity is known and they will probably never leave Russia again.
And furthermore, are these files authentic? I would not be surprised by the conclusion this suggests but lets deal with hard evidence and not intuition.