Beijing has prioritized the return of talented Chinese studying overseas to help development in high-tech fields. But are Chinese students in the United States really a national security threat?

Chinese students make up 22.7% of Michigan's total international student population. The Trump administration has vowed to "aggressively revoke" their visas.

Some former spy-hunters see the State Department’s plan to revoke visas of some Chinese college students as heavy-handed and counterproductive.