That was my question when I heard this news. If such a facility existed, why didn't we bulldoze it?
“If such a facility existed, why didn’t we bulldoze it? “
Perhaps because it was identified and “contained?” If you have limited resources, you must concentrate on the “search” aspect and don’t bother with things you have already “found.” Disposal is someone else’s concern for later. That those people never got around to it...