A record high level of radioactive cesium has been found in groundwater beneath the crippled Fukushima No. 1 nuclear power plant, it operator TEPCO revealed. On February 13, Tokyo Electric Power Co. reported 37,000 becquerels of cesium-134 and 93,000 becquerels of cesium-137 were detected per liter of groundwater sampled from a monitoring well earlier that day. Water samples were taken from the technical...