Yep, looks like the FBI created the problem they were ineptly trying to prevent.
http://www.businessinsider.com/the-fbi-hatched-some-crazy-te...
Qian returned to Caltech in 1949 and a year later faced the accusation by two former members of the Los Angeles Police Department's "Red Squad" that he was a card-carrying member of the Communist Party.
thanks LAPD
for a question like this to appear on HN makes me realize why mccarthy-era tactics were popular for so long.
they obviously work, even on smart people, and even in retrospect.
If someone produces excellent, productive research, and that research is leaking, simply ratchet up security around the research until the leaks stop. If there is a spy, they will eventually look around at all the security measures and consider the risk to their life and liberty to be too great to justify leaking information further. At that point, leaks will stop, but good research will continue, and that outcome provides much greater utility than the alternatives.
People are often too preoccupied with persecution that they view the absence of persecuting anyone of something as wrong. In the US we are preoccupied with the idea that someone, somewhere may be doing something wrong and that we should be punishing that person because they deserve it. In this case (and in most cases) persecution didn't solve the problem, but tightened security would have.
This never happens in espionage. Once you go down that rabbit hole even a little, the people you're giving information to own you. They have the power to instantly ruin your life. If you stop giving them information, they inform on you. Most spies never wanted to be spies. They got sucked into a crappy situation by making one crappy decision, then they're stuck with it forever.
But people get focused on whether people are "with us or against us". He was with science. In the end, that's all that matters. Nations are not important.
and it succeeded, obviously, to great effect.
"The man deemed responsible for these technological feats also was labeled a spy in the 1999 Cox Report issued by Congress after an investigation into how classified information had been obtained by the Chinese."
I would imagine his opinion might count for something.
I say he probably wasn't interested in helping the Chinese government (both Nationalist and Communist). I think he likes being in his laboratory and doesn't care about politics.
But if no evidence ever found, our government should apologize.