New York times: Half a mile beneath the desert surface, in thick salt beds left behind by seas that dried up hundreds of millions of years ago, the Department of Energy is carving out rooms as long as football fields and cramming them floor to ceiling with barrels and boxes of nuclear waste.
The salt beds, which have the consistency of crumbly rock so far down in the earth, are what the federal government sees as a natural sealant for the radioactive material left over from making nuclear weapons.
The process...