What on earth?

I was surfing around one day - interested in finding out about nuclear blast radius (yes - even though I did work around them long time ago...) and so I stumbled across a list of U.S. nuclear tests. Of the ones listed, over 800 were conducted underground! (The number of tests above ground, was a great number as well).

Strange thing, I think now - to have done so many tests. We knew these things worked and that they were... powerful. What more do you need to know?

Never did find out what I was actually looking for, it was interesting reading some fo the results of the test detonations. And even now, I can't seem to find that page...