Under then President Clinton, In 1999, the USA accused Taiwanese-American nuclear physicist Wen Ho Lee, who worked at Los Alamos, of giving the design of Americas most-advanced nuclear warhead to China.
The charges were dropped by 2006 due to a lack of evidence but the incident sparked widespread unease among ethnic Chinese scientists at the laboratory.
Another reason the Natural Born Citizen Requirement (born to two U.S.S Citizens on U.S. soil) and ending the Anchor Baby Loophole should be enforced.
American & the UK (particularly the UK!) trained the scientists & engineers for Pakistan & Indian nuclear weapons program. Even more so the UK for Iraq’s. If you accept these people into nuclear physics\engineering programs they are not going to go back (If they go back!) to their 3rd World corrupt shithole dictatorships (Ok India not so much!) and say to the Fearless Leader ‘Nah I only want to do Atoms for Peace’!
Leftist / bureaucratic US universities need every foreign student they can get, paying full tuition, to keep their massive admin staffs and gender-studies departments funded.
Being an open society, the US allows these people to game both systems. Short-term job/work opportunities in China for mom or dad, while money and family is outside of China.
The US military sells weapons to Taiwan. The Chicoms “procure” it from Taiwan and reverse engineering it or flat out copy it. What’s the big mystery? It’s been going on since the Carter administration.