Tokyo Electric Power Co. (TEPCO) General Manager Masayuki Ono speaks during a press conference in Tokyo, Tuesday, March 19, 2013. Four fuel storage pools at Japan's tsunami-damaged nuclear plant have ... more 
Tokyo Electric Power Co. (TEPCO) General Manager Masayuki Ono speaks during a press conference in Tokyo, Tuesday, March 19, 2013. Four fuel storage pools at Japan's tsunami-damaged nuclear plant have been without fresh cooling water for more than 15 hours due to a power outage, but the plant's operator said Tuesday morning it was trying to repair a broken switchboard that might have caused the problem. (AP Photo/Koji Sasahara) less 
1 / 31
Associated Press | Photo By Koji Sasahara
Tue, Mar 19, 2013 1:00 PM EDT