I assume the fellow is Chinese and has family in China. NO Chinese origin person who cannot show that he has NO relatives in China should be allowed in our universities or near any sort of tech or defense work. The threat of harm to their families is much stronger an inducement than it is with the average run of Americans. Relatives in China of anyone in the USA are hostage to the “good behaviour” of the one in America, no matter what his status.
Let them teach “studies” courses.