PHD"s miscalculated the yield of a nuclear device or containment requirements at the Nevada Test Site.Besides vaporizing two full up birds ( nuke warheads) The fire ball burned thru two fast closure debris doors, turned cured cement into a plastic state and filling everything,took out about a mile of two tunnels,all equipment and 1500 feet of 15 foot diameter steel pipe. Only one steel door at the very end kept it from venting into the atmosphere.
About $20 million dollars worth of "Oh $hits". It was about twenty years before DOE announced that test even went off as it was classified before that.
I spent about two months in radiation protection gear sifting thru rubble trying to find experiments.
F--k...
