 Since time immemorial, the Yakima Nation lived along a stretch of the Columbia River now known as the Hanford Reach. This area provided sources of food and medicines and contains many sacred sites. But in 1943, the Yakima were driven off their homeland to make way for the Hanford Nuclear Reservation, where the plutonium for the bomb that destroyed Nagasaki was produced. Now this area is one of the most polluted places on the planet.