Ordinary bombs can take out surface facilities; but when the target is underground or otherwise embedded, the job requires a bomb with penetrating power. That's where bunker busters come in.
In what may prove to be the first nuclear explosion since 1998, North Korea claims it has conducted an underground test of a nuclear weapon. See more »
Taking a hit from an explosion probably isn't on your to-do list. But if blasts were all around you, would water or land stop your lungs from imploding? See more »
On Wednesday, the newly nuclear North Korea took its rhetoric up a notch when it threatened to attack the United States. See more »
Javelin missiles cost up to $80,000 each. So how does the U.S. Army afford to train its soldiers to fire them? See more »