NPR: As fears about an unstoppable disaster at the Fukushima nuclear power plant have calmed a bit, the crisis has entered a second phasetainted food and water, writes Richard Knox for NPR. Over the weekend, radioactive iodine and cesium emitted by the crippled facility turned up in milk, spinach and other greens, canola seeds, fava beans, and drinking water. As a precaution, the Japanese government has been handing out protective potassium iodide pills to people and advised some localities that residents should not drink the water although they may bath in it. Food and water contamination is still too low to impact human health, however, says the World Health Organization, in a report by CNN.