Researchers with the Manhattan Project lived and breathed radiation ... literally
Don't miss this at the end of the article: "...the people the U.S. government secretly injected with plutonium."
Doctors working with the Manhattan Project initially injected plutonium into 18 men, women, and children. They acted without obtaining the consent of these people, informed or otherwise, and without therapeutic intent. Their mission was to study dispassionately the “fiendishly toxic” effects of plutonium on selected groups so that physician-scientists would know how best to protect American researchers, soldiers, and citizens exposed to atomic weapons.
Talk about sinking to the level of your enemy...