https://en.wikipedia.org/wiki/Wen_Ho_Lee

Wen Ho Lee (Chinese: 李文和; pinyin: Lǐ Wénhé; born December 21, 1939) is a Taiwanese-American scientist who worked for the University of California at the Los Alamos National Laboratory in New Mexico.He created simulations of nuclear explosions for the purposes of scientific inquiry, as well as for improving the safety and reliability of the U.S. nuclear arsenal.