At the Hanford Nuclear Reservation in southeast Washington, the race is on to clean up radioactive sludge buried in aging underground tanks. Some of that waste has already leaked into the soil not far from the Columbia River.
Attempts to use high-tech robotics to hose out waste tanks haven't gone as planned. And an important federal cleanup deadline is fast approaching. Anna King has visited one of the Hanford tank farms several times to see what’s causing the delays. She shares this first person account.