As described in a Greenpeace blog, as well as covered at The Raw Story, Greenpeace International radiation monitoring teams off the Fukushima Prefecture coastline have detected radioactivity in edible seaweed -- a staple in Japan, and commonly consumed internationally as well -- 50 times the permissible level (which itself should not be misconstrued as being "safe," as any exposure to radioactivity, even at exceedingly low doses, still carries a health risk). In addition, Greenpeace detected radioactive contamination above permissible levels in multiple species of edible fish, as well as shellfish. The Fukushima Daiichi nuclear power plant has been releasing large-scale amounts of radioactively contaminated water for many weeks on end, right up to the present as yet another new leak was just reported yesterday. All this bad news comes amidst Tokyo Electric Power Company's belated admission that the Unit 1, 2, and 3 reactors have all suffered melt downs. It took Tepco 11 weeks to admit this, even though the meltdowns likely began (at Unit 1, anyways) even before the tsunami hit, and had resulted in perhaps 100% meltdowns of the Units 1, 2, and 3 cores in the first few days of this catastrophe.