https://radii.co/article/its-not-rocket-science-except-when-...
we sentenced Qian to house arrest with zero evidence or charges, and in return Under Qian’s direction, Chinese researchers developed the first generation of “Long March” missiles and in 1970 supervised the launch of Chia’s first satellite.
“I do not plan to come back,” Qian bitterly told a reporter as he prepared to leave the country. “I have no reason to come back…. I plan to do my best to help the Chinese people build up the nation to where they can live with dignity and happiness.”