IAEA Head arrives in Japan: Racing against the clock

The unfolding crises have led to power shortages in Japan, forced factories to close, sent shockwaves through global manufacturing and triggered a plunge in Japanese stock prices.

"We see it as an extremely serious accident," Yukiya Amano, the head of the UN's International Atomic Energy Agency, told reporters Friday just after arriving in Tokyo. "This is not something that just Japan should deal with, and people of the entire world should cooperate with Japan and the people in the disaster areas." (AP)