People walk and ride along the campus of Stanford University in Stanford, California, on May 30. (John G Mabanglo/EPA-EFE/Shutterstock)

The Trump administration is revoking visas for Chinese students “with connections to the Chinese Communist Party or studying in critical fields” and revising its “visa criteria to enhance scrutiny of all future visa applications” for students from China and Hong Kong.

This is both necessary and long overdue. For years, China has been engaged in a systematic effort to target U.S. universities, using Chinese students to conduct extensive espionage and intellectual property theft on elite campuses across the United States — which has helped fuel China’s technological and military growth.

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