Archive

07 Jan Sam Gregory

Sam Gregory, Executive Director Sam Gregory is a human rights advocate and technologist fighting on the front lines against deepfakes and deceptive AI, and supporting human rights defenders to use video and technology in defense of truth and fact. He drives cutting-edge approaches to preserve trust, authenticity, and evidence in our increasingly complex digital landscape. A recognized authority on audiovisual communication and deception, and on the use of video and technology to advance human rights, he has testified before both the US House and Senate on AI and media transparency and is a TED speaker and frequent keynote speaker who outlines the necessary steps to fight back against malicious and deceptive AI. In 2025, Sam was the Gruber Distinguished Lecturer in International Justice at Yale Law School on “Fortifying Truth, Trust and Evidence in the Face of Artificial Intelligence and Emerging Technology.” Sam has over 25 years of global experience innovating and leading interventions at the intersections of video, technology, and human rights. As Executive Director of WITNESS, he spearheads our strategic plan to "Fortify the Truth," championing a global team supporting millions to use video and technology for human rights, and with a proactive focus on shaping and adapting
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02 Jan Nkemakonam Agunwa

Nkem Agunwa, Associate Director, Communications & Engagement Nkem Agunwa is the Associate Director of Communications & Engagement, providing strategic leadership across the organisation's communications, digital engagement, and public positioning. She leads efforts to strengthen WITNESS' visibility, shape understanding of emerging issues at the intersection of technology and human rights, and translate the organisation's expertise into greater influence, engagement, and impact. Her work spans media strategy, storytelling, institutional communications, and strengthening WITNESS' connections between frontline realities and systems-level change. Before this role, Nkem served as the Africa Senior Program Manager at WITNESS, where she supported activists, journalists, advocates, and legal experts across the continent in harnessing the power of video and technology in defense of human rights. She led efforts to elevate the role and influence of community-based human rights defenders and journalists in resisting delegitimisation, asserting truthful narratives, and advancing justice. Before joining WITNESS, Nkem worked with Amnesty International Nigeria, where she developed and led campaigns addressing human rights issues and supported movement leaders, activists, and human rights defenders to strengthen documentation and reporting practices in pursuit of accountability. Nkem holds a Master's degree in Mass Communication from Liverpool John Moores University in the United Kingdom.
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