McCarthy-era paranoia got JPL co-founder Qian Xuesen deported to China in 1955, where he built every major Chinese missile and space program.
Key Takeaways
Qian co-founded JPL in 1943, held the Goddard professorship at Caltech, and was rated by von Braun as a genius after their 1945 interrogation session.
Stripped of his clearance over a 1938 Communist Party document, he spent five years under house arrest before being traded for Korean War POWs.
Back in China he led the Fifth Academy (now CASC), producing the DF ballistic missile series, the Dong Fang Hong-1 satellite, and enabling China’s 1964 atomic and 1967 hydrogen bomb tests.
The DF-21D carrier-killer and JL-3 submarine-launched nuclear missile trace directly to Qian’s foundational work, reshaping U.S. Navy fleet design and missile defense posture.
Secretary of the Navy Kimball called the deportation “the stupidest thing this country ever did.”
Hacker News Comment Review
Commenters draw a direct line from Qian to current immigration policy, noting that Chinese-American scientists still face disproportionate security scrutiny, and asking how many equivalent talents are leaving the U.S. today.
Debate over whether Qian was a committed Communist or a pragmatist is largely unresolved; his KMT family ties and pre-deportation apolitical record complicate the CCP-loyalist narrative China prefers.
Parallel cases raised include Erdal Arikan (5G polar codes, denied a U.S. green card, went to China) and Jack Parsons (composite solid rockets, JPL, also had security troubles), suggesting Qian is part of a pattern rather than an outlier.
Notable Comments
@fakedang: Erdal Arikan, denied a green card, took his polar-code research to China; his work became foundational to 5G.
@MaxPock: Qian reportedly advised Chinese leaders in 1992 to skip ICE and bet on EVs, a call that shaped today’s BYD-era dominance.
