The Chernobyl reactor blew wide open, sent core bits flying, then burned for a couple of weeks. Fukushima remains mostly contained. I think release has been mos

The Chernobyl reactor blew wide open, sent core bits flying, then burned for a couple of weeks. Fukushima remains mostly contained. I think release has been mostly through water. But it's not over yet and we don't know what the total effects will be.