I've always thought that the well-coiffed narrator in this "Report on the Effects of Radiation Fallout "(included in Peter Kuran's documentary Trinity and Beyond) perfectly encapsulates the attitude of the military establishment about the the known fallout hazard:

https://youtu.be/fCJm0jBuTo0?t=3820

"The development of our nuclear power has been an absolutely necessary protection against the development of the Communist threat. In this view, the few casualties, if any, must be seen as those of unidentified soldiers in a war in the service of humanity..."