These years cemented his reputation within the State Department as a Soviet expert. In early 1976, the State Department made public the fact that the Soviet Union had been beaming microwaves at the Moscow Embassy from a nearby building for many years.[25] This caused concern about possible health effects of the low-level microwave radiation. Ironically, it was Soviet research that documented the psychological symptoms of sensitivity to microwave exposure. In the United States, the standards for safe exposure to microwaves were much more lenient than in the Soviet Union.[26]
https://en.wikipedia.org/wiki/Jack_F._Matlock_Jr.