PAVE PAWS
In the 1970s, the U.S. Air Force commissioned the National Academies of Science to evaluate whether the signal of the PAVE Phased-Array Warning System (covering the entire United States) could pose a health risk to residents of California and Massachusetts towns in proximity to the RADAR.
This was the result of political action. It was Senator Ted Kennedy of Massachusetts who requested this, as mentioned in the preface of the report*. Also, the offices of Senators T. Kennedy and J. Kerry, and Congressman Delehunt, participated in discussions with the Air Force and the National Research Council*.
(*https://nap.nationalacademies.org/read/11205/).
Here is the report:
"An Assessment of Potential Health Effects from Exposure to PAVE PAWS Low-Level Phased-Array Radiofrequency Energy"
National Academies of Sciences, Engineering, and Medicine. 2005.
https://doi.org/10.17226/11205.
Paul Brodeur, American investigative journalist, writes about this in his book (Chapter 14 "Answering the Question"):