Starting near the end of World War II and continuing until the 1970s, the US government sponsored radiation experiments on human subjects. Some of these experiments were conducted to understand the effects of radiation on atomic bomb workers. Others were to learn about the benefits of radiation for cancer patients. Many of the experiments were conducted in secret or not well understood by the public.

Twenty years ago, a committee appointed by President Bill Clinton reported on decades of radiation experiments conducted under the auspices of the federal government.