 And that water was used to shield the radiation from workers, but also to keep that material cool. And it was very, very, very challenging to remove that material from the shoreline of the Columbia River, and they did it. And although there's a lot of contamination left, they were able to do extraordinary work. And the former retired expert from the Worker Department of Energy, Dirk Dunning, has given presentations, and he often brings that up, that very difficult things can happen at Hanford and have happened.