In Episode 4 we talk to Dr Sorcha MacLeod, Associate Professor and Marie Skłodowska Curie Individual Fellow in the Centre for Private Governance (CEPRI) in the Faculty of Law, University of Copenhagen and an independent human rights expert on the United Nations Working Group on Mercenaries and the UN Intergovernmental Working Group on private military and security companies. We ask Dr. MacLeod how private security companies and their role in the COVID-19 pandemic have impacted human rights, why we should be concerned about the increasing use of mercenaries around the world, and what other issues may be on the horizon in the private security space that have implications for human rights.