"They called it “Starfish Prime.” On July 9, 1962, the US military exploded a thermonuclear warhead 250 miles above the Pacific Ocean. What happened next surprised everyone. Witnesses from Hawaii to New Zealand reported auroras dancing overhead, magnificent midnight “rainbow stripes” that tropical sky watchers had never seen before. Radios fell silent, then suddenly became noisy. Burglar alarms sounded as local streetlights in Honolulu went black." ...Snip..."Geomagnetic storms are famous for causing power blackouts. snip... EMPs can do it, too. Lurching magnetic fields cause electrical currents to flow through the ground. Literally, rocks beneath your feet begin to tingle with...