[matthewdgreen]

I don't think you or I have any access to the real evidence that would allow us to make a meaningful determination. We have almost none of the raw intelligence, and we're facing off with foreign intelligence agencies who have strong enough operational security to ensure that we won't gain access to such evidence.

We have intelligence agencies that pour hundreds of billions of dollars per year into recruiting human sources at the highest levels of foreign governments, intercepting vast amounts of encrypted data, and doing all sorts of complex analysis. It's entirely possible that the CIA has a source within Russian intelligence that has already handed them a copy of the machine's blueprints and operational plans, but the CIA can't reveal that information because it would destroy sources and methods. So instead, they're taking secret internal actions while also pushing hard on public agencies like NAS to look carefully at the non-classified evidence.

I guess it's also possible that the CIA has no evidence and just wants to pick a fight with Russia for some private reason of its own. I can't rule that out, but it would rely on a lot of people -- including Trump appointees -- having seen the (lack of) evidence and basically agreeing to go forward anyway. That seems surprising to me.

I think at the end of the day the best thing you can do is weigh motivations. Does Russia have a reason to mess with embassy staff? Well, it doesn't make sense to me personally, but then again, neither does killing your opponents in public using Novichok or Polonium. Does the bureaucratic CIA have some incentive to promote a baseless intelligence war with Russian agents, one that is likely to get people on both sides hurt? It's possible, but also seems pretty unlikely.