And without cooling you get core damagae partial meltdown and stuff within about 2, not 30 hours. These aint passive reactors. But of course, neither are they evil RBMK's.
But of course, it was all blown out of proportion by the media and said nutjob.
By the way, I live 70 km from that plant. No worries for me. Peak oil is not an energy crisis. It is a liquid fuel crisis.
Indeed, a BWR is a easier to damage, but "core damage" aka "partial meltdown" is a far cry from Chernobyl... it's also a far cry from release of anything radioactive, and it's the latter that might happen after about three days, unless the containment is cooled. (Assuming Forsmark has a typical containment, accurate technical information is hard to come by.)