Staff Biographies

Officers and Staff
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NTI is staffed by a group of experts on international affairs, nonproliferation, security and military issues, public health, medicine and communications who have operational and international experience in their fields. They have held high-level posts in the White House, federal and state agencies, the U.S. military, the U.S. Congress, and international organizations. The NTI staff share a common vision of a safer world and are working to reduce the global threats from nuclear, biological and chemical weapons.

Sam Nunn, Co-Chairman & Chief Executive Officer

Joan Rohlfing, President

Deborah G. Rosenblum, Executive Vice-President
Ms. Rosenblum became Executive Vice-President of NTI in January 2010, after serving as Senior Director for Strategic Planning and Operations since August of 2008. Prior to NTI she spent seven years as Vice-President of the Cohen Group, an international consulting firm. She served for 12 years in several senior level positions with the U.S. Department of Defense in the areas of homeland defense, peacekeeping operations and support, nuclear forces and counter-proliferation policy. During that time she represented the U.S. as Negotiator with the Democratic People's Republic of Korea on bi-lateral negotiations for their nuclear program.
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Corey Hinderstein, Vice-President for International Programs
Ms. Hinderstein became Vice-President for International Programs in December 2009, after serving as Director for the International Program since 2007. She came to NTI in 2006 from the Institute for Science and International Security (ISIS), where she was the Deputy Director of the Institute. Her research has focused on the intersection of technical and policy issues related to nuclear proliferation and nuclear material security. Ms. Hinderstein is a Phi Beta Kappa graduate of Clark University and is a member of the Executive Committee of the Institute of Nuclear Materials Management.
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Charlotte S. Atkinson, ACA, CPA, Treasurer
Ms. Atkinson joined NTI from Deloitte, where she was an Audit Senior Manager. She has more than eight years experience auditing not-for-profits, financial services and service organizations. Ms. Atkinson is a Certified Public Accountant, and a member of the American Institute of Certified Public Accountants. She is also a Chartered Accountant and a member of the Institute of Chartered Accountants in England and Wales. She holds a BSc(Hons) in Physics from the University of Bristol, and a Masters degree in International Studies from the University of Birmingham, UK.
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Robert E. Berls, Jr., PhD, Senior Advisor for Russia/NIS Programs, Director of the Moscow Office
Dr. Berls brings to NTI a background in Soviet/Russian energy and nuclear weapons issues. As a Colonel in the U.S. Air Force, he served as Air Attaché at the U.S. Embassy in the 1980s. During the first Clinton Administration he was Special Assistant to the Secretary of Energy for Russia/NIS Programs. Before joining NTI, he was Vice President for Business Development and Government Relations for a U.S. oil company.
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Matthew Dupuis, Research Asssociate
Mr. Dupuis joined NTI in spring 2009 after working in the International Security Program at the Center for Strategic and International Studies. At CSIS, he worked on projects relating to strengthening multilateral cooperation to fight proliferation and identifying potential technical and political pathways for countries seeking nuclear weapons. He received a BA in communications and political science from Texas Lutheran University in 2006.
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Louise S. Gresham, PhD, MPH, Director, Health Security and Epidemiology
Dr. Gresham previously served as the Senior Epidemiologist for San Diego County, Health and Human Services Agency with over 20 years of experience conducting and supervising infectious disease surveillance and response activities. Before coming to NTI, she was the Director of the San Diego State University Center for Public Health Security. Dr. Gresham brings expertise in national and international disease surveillance systems, including the U.S. Mexico Border Infectious Disease Surveillance program and the Middle East Consortium on Infectious Disease Surveillance. Dr. Gresham is well published and is an Adjunct Associate Professor of Public Health at San Diego State University and co-founder of the Global Emergency Preparedness and Response Master of Science.
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Catherine O'Brien Gwin, Director of Communications
Ms. Gwin came to NTI from the law firm of King & Spalding, where she served as former Senator Sam Nunn's Director of Communications and Public Policy. She previously served as Senator Nunn's Press Secretary in the U.S. Senate and the spokesperson for the Senate Armed Services Committee.
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Diane G. Hauslein, Director of Administration
Ms. Hauslein joined NTI following a 21 year career in the field of legal management - including finance, human resources, facilities/equipment management, technology and marketing. Most recently, Ms. Hauslein served as the Director of Administration for the Washington, DC office of an international law firm co-managed by James Hall, former Chairman of the National Transportation Safety Board.
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Paul Kaczmarek, Grants Manager, Global Health and Security Initiative
Mr. Kaczmarek holds a Master of Arts degree from the Russian and East European Institute at Indiana University and a Bachelor of Arts degree in History from Holy Cross College. Before joining NTI, Mr. Kaczmarek worked in the field of refugee resettlement in the United States, as an employment specialist and grants administrator.
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Claire Lehman, Development Associate
Prior to returning to NTI, Ms. Lehman served as a Field Organizer for the Barack Obama Florida Campaign for Change and at a private equity firm focused on investing in companies operating primarily in the U.S. defense, aerospace, and federal government sectors. She previously held positions with NTI's Global Health and Security Initiative, the International Council for the Life Sciences and the International Institute of Strategic Studies-US. Ms. Lehman holds a B.A. in Government and Politics from the University of Maryland, College Park focusing on International Relations and Sub-Saharan African Development.

Alexander Nikitin, Director of On-Line Communications
Prior to joining the Communications team at NTI, Mr. Nikitin pursued a PhD in Comparative Literature at Stanford University. In the past, Mr. Nikitin held teaching positions at Monterey Institute of International Studies and Carnegie Mellon University. Mr. Nikitin grew up in Russia and received his undergraduate education at Moscow State University and later at Dartmouth College. He has a Bachelor of Arts from Dartmouth College. Mr. Nikitin is fluent in English and Russian, and proficient in French and Italian.
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Mariah Richardson, Program Associate, Global Health and Security Initiative
Ms. Richardson holds a Bachelor of Arts in Philosophy and Policy Journalism from Duke University and has worked as a writer and research assistant in the global health arena. Ms. Richardson also serves on the advisory board of a non-profit health and education organization based in East Africa, providing guidance on program strategy and fundraising.
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Major Robert E. Schultz, USAF (Ret.), PMP, Senior Program Officer, Russia/NIS Programs
Major Schultz joined NTI after a military career in strategic nuclear operations and strategic offensive arms threat reduction. He brings extensive program implementation experience from the U.S. Department of Defense's Nunn-Lugar Cooperative Threat Reduction program where he was involved in the disposition of Russian strategic missiles. He also served as a Minuteman ICBM Flight Commander and as an Operations Planner on the Strategic Air Command's Airborne Command Post "Looking Glass." Major Schultz is a certified Project Management Professional and holds a Master's Certificate in Applied Project Management from Villanova University.
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Bryan K. Wilkes, Director of Programs and Outreach
Mr. Wilkes was previously the Director of Public Affairs at the U.S. National Nuclear Security Administration (NNSA). Prior to NNSA, he held several senior staff positions in both the legislative and executive branches of the U.S. government. He holds a Bachelor of Science from the University of Delaware, a Master of Arts in National Security and Strategic Studies from the U.S. Naval War College, and a diploma from the College of Naval Command and Staff at the Naval War College. He received NNSA's Silver Medal and numerous other public service awards.
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Isabelle Williams, Program Officer, International Program
Ms Williams came to NTI in 2007 from the Partnership for Global Security, where she managed the next generation nonproliferation program. She was previously research associate at the Chemical and Biological Arms Control Institute and held successive positions at the International Institute for Strategic Studies in London.
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