From 1998 to 2001, Newhouse served as senior policy advisor on European affairs to Strobe Talbott, U.S. deputy secretary of state. From 1980 to 1998, he was a guest scholar at the Brookings Institution, and served as a staff writer for the New Yorker magazine from 1980 to 1994. Newhouse is an expert in arms control and diplomacy, having spent 1977-1979 as assistant director of the U.S. Arms Control and Disarmament Agency with responsibility for East-West matters, including Strategic Arms Limitation Talks. He is the author of a number of books, including Europe Adrift, War and Peace in the Nuclear Age, and Cold Dawn: The Story of SALT. Newhouse is conducting analysis, writing, and advising CDI staff on international affairs and arms control-related issues.