Nuclear power is increasingly seen as a way for Japan, and other nations including the United States, to reduce dependence on fossil fuels.
Monday's blast destroyed the containment building but the reactor is still intact. Japanese officials also said cooling systems have failed at a third reactor.
Secretary of State Hillary Clinton will continue on to Egypt and Tunisia in her first trip to address the Arab revolutions. But the window for foreign assistance to Libya is quickly closing.
Japan's nuclear crisis is spawning concerns about 'another Chernobyl,' but a number of American and European scientists are cautiously taking the edge off the worst fears.
Stories of Japan's earthquake and natural disaster write themselves. But getting to the scene of Japan's catastrophe is another matter.
Today, Muammar Qaddafi’s forces induced a panicked rebel retreat from Brega, peppering the town – home to one Libya’s largest petrochemical complexes – with rocket and mortar fire.
The US and UK expressed support for the Arab League's approval of a no-fly zone as Libyan rebels beat a hasty eastward retreat from forces loyal to Col. Muammar Qaddafi.