Watchdog: EPA Human Test Subjects Not Always Told About Lethal Risks Of Studies

The Environmental Protection Agency has been testing the impact of pollutants on human subjects without always telling them about the risks of heavy exposure -- risks that include cancer, and even death.

The findings were included in a newly released EPA inspector general report, which urged the agency to overhaul its guidelines to make sure test subjects understand all the risks before signing up.

"[E]vidence suggests that at least some human study subjects would like to know if a study involves risk of death, even if the risk is very small," the report said.
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