Our Team

Empowering staff. Taking action.

Global Shield is comprised of three full-time staff, along with a number of volunteers and project-based consultants. 

Full Time Staff

Jared Brown

Co-Founder and Executive Director

As Executive Director, Jared is responsible for strategic management of Global Shield. He also leads Global Shield’s policy advocacy with the U.S. government on all-hazards global catastrophic risk, such as on the implementation of the Global Catastrophic Risk Management Act (GCRMA) and new legislative initiatives.

Full bio

Jared was previously the Director of U.S. and International Policy at the Future of Life Institute. At FLI, he focused on improving technology policy in the public and private sectors, particularly related to AI systems, to maximize the benefits of these technologies through the mitigation of their catastrophic risks. His work included active advocacy with U.S. and international policymakers and the provision of formal advice on draft and official policy. He previously worked as an Analyst in Emergency Management and Homeland Security Policy at the U.S. Congressional Research Service, where he confidentially advised the U.S. Congress on a range of critical policy topics, including the authorization and use of the Defense Production Act and many emergency response programs of the Stafford Disaster Relief and Emergency Assistance Act. He holds a B.S. in Social Psychology and an M.P.P. with a special emphasis is humanitarian crisis management.

Rumtin Sepasspour

Co-Founder and Director of Policy

As Director of Policy, Rumtin is responsible for Global Shield’s research and development of policies to reduce all-hazards global catastrophic risk. He leads the development of the Global Shield newsletter and other publications. Together with Jared, he leads the strategic direction of the organization, including plans for global expansion, engagement in multilateral processes and partnerships with research and advocacy organizations.
Full bio

Prior to Global Shield, Rumtin’s 20-year career spanned across policy, business and research. Most recently, Rumtin was an independent researcher, adviser and public advocate for the ways governments can reduce existential and global catastrophic risk. He has led pragmatic and pioneering research in the field of GCR policy, including on all-hazards policy approaches to GCR, policy engagement by the expert community, and policy options for reducing GCR. He has published on the role of intelligence communities to help reduce existential risk, AI risk and governance, and Australian policy towards nuclear risk and national risk. Prior to this, Rumtin had a successful career in the Australian Public Service as a policy officer in the Department of the Prime Minister and Cabinet and an intelligence analyst in Australia’s Department of Defence. He is a Research Affiliate of the Centre for the Study of Existential Risk at the University of Cambridge and a Visiting Fellow with the School of Regulation and Global Governance at the Australian National University.

Courtney Tee

Chief of Staff

As Chief of Staff, Courtney works across the organization to help deliver on its strategic, operational, and policy goals. She is particularly focused on preparing Global Shield to scale around the world and working with country office leads to support operational requirements.

Full bio

Courtney has spent her career in policy and advocacy NGOs. In her previous role, she worked with peace, security, and diplomacy programs at One Earth Future Foundation, gaining experience across global issues areas like women peace and security, bilateral negotiations, and nuclear risk reduction. She eventually joined the OEF program Open Nuclear Network full time, where she stood up and led the Office of Foresight and Prediction. There, she implemented an innovative approach to measuring the risk of nuclear catastrophe through forecasting and worked with specialists and stakeholders to connect foresight to risk reduction work. Prior to this, Courtney served at policy and advocacy organizations focused on education, housing, and other pressing domestic issues. She occasionally teaches philosophy classes as an adjunct professor at her undergraduate alma mater, specializing in epistemology and social issues. Courtney has a B.S. from Abilene Christian University and a Master’s from Harvard University.

Original Cofounder

Ariel Conn

Original Cofounder

Full bio
Ariel was a cofounder of Global Shield, leaving for personal reasons in November 2023. Ariel previously founded Mag10 Consulting, which helps organizations communicate and advocate for science and technology. She led the IEEE-SA Research Group on Issues of Autonomy and AI for Defense Systems, where she led a group of experts to develop a more nuanced understanding of autonomous weapons technologies. She also cofounded TANGO Future. Her work covers a range of issues, including global diversity issues, autonomous weapons systems, AI ethics and policy, nuclear weapons, climate change, and other global catastrophic risks. She also seeks to bridge the communications and knowledge gaps between technical experts, policy makers, industry, and the public. At TANGO and now with Global Shield, her focus is on bringing more underrepresented voices to these discussions, in order to more successfully and equitably address many of the world’s biggest risks. She was formerly the Director of Communication and Outreach at the Future of Life Institute (FLI). She’s also previously worked with NASA, the Idaho National Laboratory, the National Energy Technology Laboratory, MIT, Virginia Tech, ALLFED, the Association for the Advancement of Artificial Intelligence, and the Global Challenges Foundation. She holds a B.A. in English, a B.S. in physics, and an M.S. in geophysics.

Country Investigations

Kenya

Brazil

Tracy Nyatoro Weru

Full bio

Tracy Nyatoro Weru has over ten years of experience in program and project management, specializing in sustainable innovation, digital transformation, and gender equality advocacy. She has a Master of Science in Mobile Telecommunication and Innovation, and a Bachelor of Business in Information Technology from Strathmore University. Tracy aims to lead impactful programs that drive entrepreneurial success and contribute to the socio-economic development of Africa. Together with Natalie, Tracy is conducting an investigation into Kenya’s political and policy environment for global catastrophic risk advocacy.

Natalie Kiilu

Full bio

Natalie Kiilu is a lawyer and researcher based in Nairobi, Kenya, with a profound commitment to enhancing global health security. Her research interests lie in biosecurity policy, pandemic preparedness, and strengthening global health systems. Natalie is currently pursuing a Master of Laws (LLM) degree at the University of Cambridge, where she is deepening her expertise in these critical areas. Particularly keen on safeguarding the world through mitigating and preventing global catastrophic biological risks, Natalie aims to achieve this through contributing to initiatives that enhance the preparedness and resilience of low- and middle-income countries in facing global health security challenges. Together with Tracy, Natalie is conducting an investigation into Kenya’s political and policy environment for global catastrophic risk advocacy.

Fernanda Dalla Libera Damacena

Full bio

Fernanda is a lawyer and consultant specialist in Disaster Law, environment, and the relationship between these areas with climate change and public policies. She has a Bachelor's Degree in Legal and Social Sciences. Postgraduate Certificate in Public Law, a Master's degree and PhD in Public Law. Her post-doctorate degree in Socio-environmental Law and Sustainability. Fernanda is leading an investigation into Brazil’s political and policy environment for global catastrophic risk advocacy.

Juana Maria

Full bio

Juana Maria co-leads Effective Altruism Brazil and participates in the Study and Research Group on Global Risks at the Institute for Advanced and Converging Studies at the Federal University of São Paulo (UNIFESP), with whom she organized the First Brazilian Conference on Global Risks in 2023. She has 10 years of experience in the food industry, her previous work helped improve the skills of small rural entrepreneurs in Peru, organizing training and business consultancy activities. Juana holds a master's degree in Food Science and Engineering in Brazil and a specialization in techniques for the utilization and preservation of animals from Obihiro University in Japan. Juana is supporting an investigation into Brazil’s political and policy environment for global catastrophic risk advocacy.

Policy Research

Jay Muñoz

Full bio

Jay is a public policy researcher focused on existential and global catastrophic risk. With a background in Effective Altruism, AI policy, and community relations, Jay has experience working in political environments, helping policymakers, and getting diverse groups on the same page for a safer future. He studied Political Science and International Affairs and Spanish Literature at Florida State University and has a Masters in International Affairs from Peking University. Jay is helping Global Shield in its policy research and development, including maintaining the databases and supporting the policy series.

Andreas Vilhelmsson

Full bio

Andreas Vilhelmsson is an associate researcher with a Ph.D. in public health from Lund
University in Sweden, where he works with interdisciplinary research at the Division of
Occupational and Environmental Medicine. He has a broad interest in different aspects of
human health, with a specialized focus on issues concerning global and environmental health
(special focus on endocrine disruptive chemicals and fertility), climate change (mostly health
aspects, but also policy), mental health (including suicidology), pharmaceuticals (regulation,
toxicology, and pharmacovigilance), pandemics, nudging, AI and digitalization. He is a 2022
Fellow with the Global Catastrophic Risk Institute where he collaborated on public health
implications of nuclear winter. Andreas is helping Global Shield in its policy research for identifying and developing concrete policy options to reduce global catastrophic risk.