there's one about dawn harnig, who was a young man and chosen to babysit the young mom. this was the gadget, the first test bomb, that was on 105th tower in the desert of southwestern new mexico. and the bomb was supposed to be detonated at 5:00 in the morning, but there was a huge thunderstorm and they didn't know what would happen if the lightning hit the gadget in some way, but they needed someone up there on the tower, too. because if someone snuck up and just pulled one plug, it might fail. so he had to sit up there all by himself, not knowing whether a lightning would hit him or the hit the gadget and be gone or not. >> well, how can people find these interviews? you have an online database. how do they search it? >> it's very easy. first, you can get on by typing in manhattan project voices and then there'll be the website. it'll have a search category. you can search by name. you can search by category. you can search across all of the interviews to find the person, the place, the subject matter you're most interested in. >> one last question for you. how should