Japan's former Prime Minister Naoto Kan speaks at a parliamentary investigative panel of the Fukushima Dai-ichi nuclear power plant accident after a massive earthquake and tsunami last year in Tokyo Monday, May 28, 2012. Kan who was the prime minister during Japan's nuclear crisis said he had to use an emergency law that never anticipated major radiation leaks and lacked experts capable of giving him guidance. (AP Photo/Koji Sasahara)