Tom Z. Collina is the Director of Policy at Ploughshares Fund, a global security foundation in Washington, DC. He has 30 years of nuclear weapons policy experience and has testified before the Senate Foreign Relations Committee and was closely involved with successful efforts to end U.S. nuclear testing in 1992, extend the Nuclear Non-Proliferation Treaty in 1995, ratify the New START Treaty in 2010, and enact the Iran nuclear deal in 2015. Collina has published hundreds of articles, op-eds, and reports and appears frequently in major media.