I arrived in the United States on Aug. 17, 1978, seeking education and opportunity. I paid full tuition — higher than out-of-state rates — and later, in graduate school, received support from the U.S. Air Force Office of Scientific Research and industry grants. Over 43 years, I’ve taught more than 24,000 students and mentored 8,000 professionals from over 40 countries. I’ve witnessed firsthand how international students enrich this nation — in classrooms, labs, startups, and communities.

Recently, the U.S. government revoked Harvard University’s certification to host international students under the Student and Exchange Visitor Program, sending a chilling message: “You are not welcome.” This action (which for now has been blocked by a judge) affects approximately 7,000 students — 27% of H

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