The risk of a meltdown spread to a third reactor as its cooling systems failed, exposing its fuel rods, only hours after a second explosion at a separate reactor blew the roof off a containment building.
Thousands of supporters and opponents of President Hosni Mubarak battled in Cairo's main square in scenes of uncontrolled violence as soldiers stood by without intervening.
Tensions between North and South Korea have boiled over, with shots being fired by both sides leaving at least two marines dead and wounding more than 13 others.
North Korea's claim of a new, highly sophisticated uranium enrichment facility could be a ploy to win concessions in nuclear talks or an attempt to bolster leader Kim Jong Il's apparent heir.
The shocking reality of the terrorist bomb plot emerged today when Scotland Yard revealed that the device taken from a plane in Britain was timed to explode over the US
A volcanic eruption and a tsunami killed scores of people hundreds of miles apart in Indonesia — spasms from the Pacific "Ring of Fire," which spawns disasters from deep within the Earth.