['Operation Ivy', produced by the U.S. Air Force Lookout Mountain Laboratory, Hollywood, California for the U.S. Armed Forces Special Weapons Project, and presented very impressively by Western cowboy film star Reed Radley:]
"You have a grand-stand seat here, to one of the most momentous events in the history of science. In less than a minute, you will see the most powerful explosion ever witnessed by human eyes. The blast will come out of the horizon just about there [...] and this is the significance of the moment. This is the first full-scale test of a hydrogen device. If the reaction goes, we're in the thermo-nuclear era. For the sake of all of us, and for the sake of our country, I know that you join me in wishing this expedition well."