Between the years of 1945 and 1947, researchers at Vanderbilt University conducted a twisted experiment in which hundreds of pregnant women were exposed to radiation intentionally for the purpose of testing how it affected both the child and mother.
The study was funded by the U.S. Public Health Service and overseen by the Tennessee State Department of Health. All of these women were poor and had no knowledge of the experiment, and were never informed that they were a part of a study.
The government is not your friend and will gladly do experiments on its citizens in the "name of science" for miltary purposes.
http://humansarefree.com/2018/01/us-govt-caught-experimenting-on.html
https://bioethicsarchive.georgetown.edu/achre/final/chap7_6.html