Text size About the author: Justin Sherman is the founder and CEO of Global Cyber Strategies, a Washington, D.C.-based research and advisory firm, a senior fellow at Duke’s Sanford School of Public Policy, and a nonresident fellow at the Atlantic Council. At the end of 2022, policymakers from the U.S. and the European Union huddled in College Park, Md., for a major gathering on trans-Atlantic tech cooperation. Press releases struck an optimistic tone, but the reality was more complicated. There are rocky waters ahead for one of the world’s most vital technology relationships, as the two players grapple with diverging...