Steven Simon, professor in the practice of international relations, coauthored the paper “19 Years Later: How to Wind Down the War on Terror” that appeared on the Carnegie Endowment for International Peace website. “The policy departures recommended in this paper are intended to thread the needle by reducing the scope and intensity of U.S. CT operations and increasing congressional oversight while retaining an effective capacity for self-defense,” Simon and his coauthor, Richard Sokolsky, wrote.