Kicking out Chinese students might seem like tough, decisive policymaking, but it’s exactly the wrong way to protect the United States’ scientific and technological advantage. Welcoming foreign talent isn’t simply a virtuous position to take—in fact, that openness is at the core of U.S. power. The United States gains tremendously from the inflow of Chinese students, and China loses from its top talent going abroad. The Biden administration should work to reduce the risk of technology transfer, including through intelligence and research security reforms. But driving Chinese students away could cripple U.S. innovation and supercharge China’s technological progress. The United States should make the most of its talent advantage, not throw it away on an ineffective ban.