Demonstrators march during an anti-nuclear protest to mark the first anniversary of an earthquake and tsunami that killed thousands and set off a nuclear crisis, as a monitor displaying the current radiation level shows a reading of 0.416 microsievert/hour, in Koriyama, Fukushima prefecture March 11, 2012. About 16,000 people gathered from across the country, took part in the demonstration, according to the organiser. REUTERS/Yuriko Nakao (JAPAN - Tags: ANNIVERSARY DISASTER POLITICS ENERGY)