SPY Historian Vince Houghton sat down with Kelsey Davenport, the Director for Nonproliferation Policy at the Arms Control Association, where she provides research and analysis on the nuclear and missile programs in Iran, North Korea, India, and Pakistan and on nuclear security issues. Vince and Kelsey discuss the complexity of the arms control process, the role of intelligence in verifying the status of nuclear weapon states, and the hope for a future without the danger of nuclear proliferation.