I took it as for granted that the pile would operate, the first nuclear reactor, and to get on with the job, I wanted to stay with Du Pont because we were figuring out where to locate the reactor. And consistent with this idea of looking for all the ways things could go wrong, I had looked up a table of the thunderstorm days per year in the United States, because a thunderstorm gave lightning, lightning would possibly shut down the electric power operating the pumps keeping the reactor going. And therefore, I said we ought to cross off Florida, because it has the highest number of thunderstorm days per year in the United States. We had a list of sites and the site in the state of Washington looked the best. It's an amazing thing, this beautiful Columbia River flowing down from the ice fields of British Columbia, flowing south through the state of Washington, and then turning west to the ocean along the border between Washington and Oregon. Ice cold, flowing in desert country. Why desert in the north-west? The answer: the Cascade Mountains between that Columbia River Valley region and the Pacific, and the moist air coming from the Pacific rising up over the mountain, gets cooled and deposits its moisture in the form of snow, so the beautiful Cascade Mountains, and that air, drained of its moisture, going down the other side, getting compressed and being re-heated by compression, to a higher temperature than it started with. That's why you have 100 degrees temperature, 100 degrees fahrenheit temperature, all the time there, in the summer, in the state of Washington.