9 Ways the U.S. Could Bomb North Korea's Deepest Bunkers
By David Hambling
Sep 12, 2017
Efforts to prevent North Korea's relentless advance toward developing nuclear ICBMs have so far achieved little. There is no end in sight to the stream of tests and new missiles and increasingly powerful warheads. If sanctions and diplomacy fail, what else is there?
http://www.popularmechanics.com/military/research/a28147/north-korea-bunker-buster/
