Between 1955 and 1957 researchers gave 200 doses of iodine-131 to 85 healthy Eskimos and 17 Athapascan Indians living in Alaska.
When radioactive iodine I-131 is swallowed, it’s absorbed into the bloodstream and concentrated by the thyroid gland, where it begins destroying the gland’s cells.
No one tells the test subjects what is being done to them, so there is no informed consent. The Eskimos and Indians simply trusted them.
What can’t you do in the name of science?