Protesters hold placards during an antinuclear rally in Tokyo Sunday, March 27, 2011. Leaked water in Unit 2 of the Fukushima Dai-ichi plant measured 10 million times higher than usual radioactivity levels when the reactor is operating normally, Tokyo Electric Power Co. spokesman Takashi Kurita told reporters in Tokyo. The yellow placard has a message that reads "We don't need nuclear plants. Don't spread radioactive substance." The red placard shows Japanese words meaning "nuclear plants," as "We don't need nuclear plants."