In 1943, as World War II raged in Europe and the Pacific, thousands of men and women from across the United States began arriving in a remote part of south-central Washington state. They knew very little about why the U.S. government had hired them - only that it was an important project to support the war effort. It was a project that would change the world forever.
Although production ceased under President Johnson, the Department of Energy still spends billions every year to clean up the waste legacy left over from the cold war.
Watch the documentary here.