Langston B. Lee is a Horizon Junior Fellow at Georgetown’s Center for Security and Emerging Technology (CSET), where he works on the AI Governance team. His research focuses on policy levers in AI competition, frontier AI research in China, open models, and AI sovereignty. Previously, Langston was a research assistant at the University of Maryland’s Applied Research Laboratory for Intelligence and Security (ARLIS), where he worked on AI supply chain security and cyber resilience. Before that, he was a research assistant at the Surveillance Technology Oversight Project, studying federal and military surveillance of protests and publishing an analysis of NYPD drone programs in Tech Policy Press. He was also a research fellow with the Supervised Program for Alignment Research (SPAR), examining how states can build AI biosecurity safeguards, and an Applied Social Media Lab scholar at Harvard’s Berkman Klein Center for Internet & Society. Earlier in his career, he spent four years as a constituent services representative for U.S. Senator Chris Van Hollen. Langston holds a BA in political science from Morgan State University.