Excerpt: "Tokyo Electric Power Co. said it had detected an 8-inch crack in the concrete pit holding power cables near reactor No. 2 and was working to seal the fracture. Tepco said the water was coming directly from the reactor and the radiation level was 1,000 millisieverts an hour. The annual limit of radiation exposure allowed for Fukushima workers is 250 millisieverts."

Workers wearing protective suits spray adhesive synthetic resin over the ground at the Fukushima Daiichi Nuclear Power Plant, 04/01/11. (photo: Reuters/TEPCO)