“An Assessment of Illness in U.S. Government Employees and Their Families at Overseas Embassies,” National Academies of Sciences, Engineering, and Medicine. Released December 5, 2020. “Overall, directed pulsed RF energy, especially in those with the distinct early manifestations, appears to be the most plausible mechanism in explaining these case.”
See especially Appendix C: “Additional Comments on Directed Radiofrequency Energy.”
https://microwavenews.com/papers/nas-embassy-illnesses