Greg Thielmann has served more than three decades in the executive and legislative branches of government, specializing in political-military and intelligence issues. Before joining ACA in 2009, he worked for four years as a senior professional staffer of the Senate Select Committee on Intelligence (SSCI). He was previously a U.S. Foreign Service Officer for 25 years, last serving as Director of the Strategic, Proliferation and Military Affairs Office in the Department of State’s Bureau of Intelligence and Research. His foreign posts include Deputy Political Counselor of the U.S. Embassy in Brasilia, Brazil; Political-Military Affairs Officer in Moscow, USSR; and Political-Military Affairs Officer in Bonn, Germany. Thielmann also served as Deputy Director of the State Department’s Office of German, Austrian and Swiss Affairs; Special Assistant to Ambassador Paul Nitze (then Special Adviser to the President and Secretary of State on Arms Control Matters); and State Department advisor to the U.S. Delegation at the Geneva INF arms control negotiations. Greg is a member of the Council on Foreign Relations and a former member of the Board of Directors of the Arms Control Association (2003-2005). His July 2003 appearance at an ACA press briefing on faulty intelligence assessments on Iraq’s WMD capabilities led to a CBS News 60 Minutes II segment “The Man Who Knew,” which won an Emmy Award for reporter Scott Pelley.
Greg Thielmann's primary research areas include:
As negotiations are poised to resume between Iran and the six powers seeking to rein in Iran's nuclear program, it is difficult to avoid a sense of déjà vu.
By mid-September, P5+1 diplomats (from the United States, Britain, France, China, Russia, and Germany) will likely resume talks aimed at resolving concerns about Iran's nuclear program with President Hassan Rouhani's new negotiating team. The talks represent an important opportunity to finally reach a deal that limits Iran's most worrisome uranium enrichment activities, obtains more extensive inspections to guard against a secret weapons program, and shows Iran a path toward phasing out international sanctions.
Preventing the production and accumulation of fissile material is an important objective of nuclear nonproliferation efforts. Unfortunately, the nuclear Nonproliferation Treaty (NPT) exempts the fuel used in naval propulsion reactors from the constraints the treaty otherwise applies to enriching uranium beyond the levels used in civilian power reactors. As the number of countries with nuclear-powered submarines expands, this exclusionposes a growing risk to achieving the nonproliferation goals of the treaty.
Following condemnations by the international community of North Korea’s December satellite launch and February nuclear test, Pyongyang unleashed a furious barrage of rhetorical threats in March and April against the United States and South Korea. Now, the hot air war of the early spring appears to be over, despite the exercise launch of six short-range missiles by North Korea off its east coast in recent days and the ongoing visit of a U.S. aircraft carrier strike group to South Korea.