Drell cites data from a 1962 nuclear test called Sedan at the Nevada Test Site that involved a 104-kiloton explosion 635 feet below ground. Despite the depth of the weapon, 12 million tons of radioactive earth and debris were propelled into the atmosphere. The crater it left was 1,280 feet in diameter and 320 feet deep. That is a BIG hole. Wonder if there are pics of these holes in public domain?
I think the other article on the mini nukes might have been a Popular Mechanics article.
