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MITRE'S Homeland Security Center Leadership Barbara Toohill is director of MITRE's Homeland Security Center and the Homeland Security Systems Engineering and Development Institute (HS SEDI™), providing strategic direction and leadership of MITRE's cross-company homeland security portfolio. She leads a team of senior MITRE executives who provide unified program direction to ensure comprehensive, integrated, and strategic support to the Department of Homeland Security and its stakeholders. Previously, Ms. Toohill served as deputy director of the HLSC. In this role, she led the integration, coordination, and collaboration among more than 400 MITRE technical staff across the entire DHS work program. She also oversaw the company's work for multiple DHS offices, programs, and acquisitions, including the Secure Border Initiative, SBInet, US-VISIT, Customs and Border Protection, U.S. Citizenship and Immigration Services Modernization, Immigration and Customs Service, Science and Technology Directorate, Office of the CIO, Office of the Chief of Procurement, and Office of the Chief Security Officer. Ms. Toohill has more than 30 years of experience as a strategist, leader, and systems engineer on critical federal systems and initiatives. She has worked with DHS since its inception, initially serving as the program manager for MITRE's support to the US-VISIT Program, where she and her team collaborated with DHS program executives to develop the vision for the program's technical concept and to achieve its legislative mandates. Prior to supporting DHS, she served as MITRE's program manager for the IRS Business Systems Modernization Program. Previously, she managed MITRE's Advanced Information Technologies Center, focusing on strategies for advanced command and control systems and incorporating modeling and simulation, artificial intelligence, and networking technologies. Ms. Toohill holds masters degrees in computer science and technology management. John Kreger is chief systems engineer of the HS SEDI. Mr. Kreger is responsible for integrating systems engineering capabilities and ensuring best practices across MITRE's efforts for multiple homeland security partners. He is also responsible for ensuring the quality of the execution and delivery of MITRE's DHS work programs. He works closely with the SEDI director and deputy director to identify programs that support the homeland security mission. Additionally, he collaborates with the chief technologist to determine current and future mission requirements that can be achieved through MITRE's technology solutions and R&D program. Over his 20-year career with MITRE, working on complex programs for the defense and intelligence community, Mr. Kreger has developed special expertise in systems acquisition and integration, technology insertion, and interoperability. Previously, Mr. Kreger served as associate executive director of MITRE's Joint and Defense-Wide Systems Division, responsible for integrating Department of Defense (DoD) policy and standards to enable cross-service and agency interoperability. Prior to that, he was director of MITRE's DoD Enterprise System Engineering Office. From 2005 to 2007, he lectured on "Building a Net-Centric Enterprise" for the Defense Acquisition University's Executive Program Managers' course. A retired U.S. Navy Captain, Mr. Kreger spent five years on board Navy nuclear submarines and 22 years in the Naval Reserve, including three command tours. He completed the Air Command Staff College Joint Military Operations program and has a master's of science degree in systems engineering. Kimberly Warren is chief technologist of the HS SEDI. She is responsible for directing and guiding our homeland security-related research efforts, including the transfer of applicable innovative technology from non-homeland security research. She is a member of MITRE's Chief Technology Officer's Innovation Council and has more than 20 years of experience in artificial intelligence, large-scale systems engineering, enterprise architecture, and supply-chain and enterprise collaborative technology. Ms. Warren previously directed MITRE's Screening, Credentialing, and Transportation Security work program, leading MITRE support to the DHS's Transportation Security Administration. As chief architect for MITRE's Center for Advanced Aviation Systems Development (CAASD), she played a lead role in evolving software processes and establishing strategic directions for software modeling, simulation, and laboratory assets. She was responsible for all software development processes for software deliverables, environments and tools, and also ensured coherent and modern software architecture and re-use. Ms. Warren previously served as a global director for General Motors, defining and executing a strategy for development and deployment of new applications for the company's global designers, engineers, and product developers. She holds a master's of science degree in artificial intelligence from Edinburgh University in Scotland. Kenneth P. Rapuano is the Director of Advanced Systems and Policy for the HS SEDI. He is responsible for guiding crosscutting homeland security mission initiatives and engaging and leveraging best capabilities from across and outside of MITRE. Prior to joining MITRE, Mr. Rapuano served at the White House as Deputy Homeland Security Advisor to President Bush from 2004-2006. He chaired the Homeland Security Council Deputies Committee, co-chaired the White House Counterterrorism Security Group, and was responsible to the President for managing the development, coordination, and oversight of homeland security policies for the Executive Branch. In 2006-2007, he volunteered for deployment to Afghanistan as a Marine Corps officer with a Joint Special Operations Task Force. He also served a tour in Iraq in 2003, commanding the Joint Interrogations and Debriefing Center of the Iraq Survey Group. In 2003, Mr. Rapuano was appointed as the first Deputy Under Secretary of Energy for Counterterrorism, responsible for counterterrorism policies and special access programs for the U.S. Department of Energy and the National Nuclear Security Administration. Mr. Rapuano is a Distinguished Research Fellow with the Center for the Study of WMD at National Defense University, and currently is a member of the Homeland Security Science & Technology Advisory Committee, and the DHS Quadrennial Homeland Security Review Advisory Committee. Mr. Rapuano received a bachelor's degree in Political Science from Middlebury College and a master's degree in National Security Studies from Georgetown University. Page last updated: March 30, 2011 | Top of page
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