October 15, 2025
Kelly Crowley
National Security Institute
Arlington, VA – The National Security Institute (NSI) at George Mason University is honored to announce its Fall 2025 class of Visiting Fellows.
New Class of NSI Visiting Fellows
NSI is proud to welcome its new class of Visiting Fellows, who bring expertise from government, industry, academia, and the nonprofit sector. As members of the Fellows network, they will advance NSI’s mission by contributing to national security debates, publishing scholarship and commentary, and engaging in events that connect policymakers, experts, and the public.
Alice Borene – Senior Advisor, Lexpat Global Services
David Bray – Principal & CEO, LeadDoAdapt (LDA) Ventures, Distinguished Chair of the Accelerator, Stimson Center
Scott Claffee – Managing Director, Complex Matters, Guidepost Solutions LLC
Maggie Dougherty – Senior Fellow, Harvard Carr-Ryan Center for Human Rights
Karina Lipsman – Head of Government Relations, Victims of Communism Memorial Foundation
Jeanette McMillian – Strategic Advisor, Socialife Designs LLC and Former Assistant Director for Supply Chain and Cyber Directorate, National Counterintelligence and Security Center (NCSC)
Lartease Tiffith – Principal, Amalfi Global Group
Nate Walton – Principal, Sachem Strategies
New Class of CTC Visiting Fellows
NSI also added to its roster of CTC Visiting Fellows whose expertise spans technology, cybersecurity, and national security. These Fellows will play a key role in advancing the CTC’s mission by providing leadership, supporting actionable solutions to today’s cyber challenges, and engaging with policymakers on emerging technology issues.
Tatyana Bolton – Principal, Head of Cyber Practice, Monument Advocacy
David Cook – National Security Advisor, Congressman Darrell Issa (R-CA-48)
Tristan Coughlin – Director and Senior Attorney, Data Privacy and Cybersecurity, American Airlines
Col. Byron Owen – Director of Intelligence, Marine Corps Forces Cyberspace Command
Sean Singleton – Managing Principal, Oglethorpe Capital LLC and U.S. Venture Partner, Beaten Zone Venture Partners (BZV)
“NSI is thrilled to welcome these outstanding leaders to our Fellows Program,” said Jamil N. Jaffer, NSI Founder and Executive Director. “Their expertise and practical experience will enrich NSI’s work and help drive forward key policy discussions on the pressing national security challenges facing our nation and its allies.”
About the National Security Institute:
The National Security Institute at George Mason University’s Antonin Scalia Law School serves as a platform for research, teaching, scholarship, and policy development. NSI incorporates a realistic assessment of the threats facing the United States and its allies, as well as an appreciation of the legal and practical challenges facing our intelligence, law enforcement, national security, technology, innovation, and cybersecurity communities.
About the NSI Cyber & Tech Center:
The NSI Cyber and Technology Center (CTC) advances American technology leadership and engages policymakers on issues at the intersection of technology and national security. Its mission is to promote American technology leadership through expert dialogue, policymaker engagement, and cutting-edge research. NSI CTC is part of the National Security Institute (NSI), which serves as a platform for research, teaching, scholarship, and policy development.
About the Antonin Scalia Law School:
The Antonin Scalia Law School was founded in 1972 as the International School of Law in Washington, DC. In 1979 it merged with George Mason Law School and was named after the late Supreme Court Justice Antonin Scalia in 2016. The school is located in Arlington, VA, and is ranked #31 (tied) nationally by US News and #3 (tied) among all law schools in DC, Maryland, and Virginia. The school offers JD, LLM, and JM degrees and is home to five nationally acclaimed centers, including the Law & Economics Center, the National Security Institute and the NSI Cyber & Tech Center, and the first-in-the-nation Cyber, Intelligence, and National Security LLM program.
About George Mason University:
George Mason University is Virginia’s largest public research university. Located near Washington, D.C., George Mason enrolls more than 40,000 students from 130 countries and all 50 states. George Mason has grown rapidly over the past half-century and is recognized for its innovation and entrepreneurship, remarkable diversity, and commitment to accessibility. In 2023, the university launched Mason Now: Power the Possible, a one-billion-dollar comprehensive campaign to support student success, research, innovation, community, and stewardship. Learn more at gmu.edu.