North Korea for the first time this week revealed plans for using its nuclear arms for space-based electronics-disrupting EMP attacks, in addition to direct warhead ground blasts. The official communist party newspaper, Rodong Sinmun, published a report Monday on "the EMP might of nuclear weapons," outlining an electromagnetic pulse (EMP) attack produced by detonating a nuclear warhead in space. "In general, the strong electromagnetic pulse generated from nuclear bomb explosions between 30 kilometers and 100 kilometers [18.6 miles and 62 miles] above the ground can severely impair electronic devices, electric machines, and electromagnetic grids, or destroy electric cables and safety...