San Onofre has two Pressurized Water Reactors--a completely different design than Fukushima. They are surrounded and contained by concrete domes...the cross section of the concrete looks similar to this:
However the thinnest sections at S.O. are at least two feet thicker than the pic. Fukushima has no such containment.
We've already had a large meltdown incident in the US--Three Mile Island. TMI's core suffered a 95% meltdown, and the pressurized water reactor design (similar to San Onofre) completely contained the core within the reactor vessel itself--there was never any possibility of the release of fission products outside the reactor plant. After decades of study, there is absolutely no link from the TMI incident to any increased radiation exposure or health related issues to the public.
San Onofre could suffer a 100% meltdown, and the results would be the same. Of course, the likelihood a meltdown at San Onofre is almost ZERO. BTW, I live about 40 miles from S.O. as the crow flies, and I have absolutely no fear of it.
As far as the Fukushima incident, from the get-go we've been deluged with worst case scenario hype, and NONE of these predictions has come to pass. I'm not trying to minimize what has happened--it is very serious--but the sky will not fall and eventually this problem will be controlled.
In the mean time, it's just a shame that there is so much incredibly ignorant fear mongering going on. Ignorance and fear go hand in hand...people fear what they can't or won't comprehend and understand. Sometimes it's hard to believe this is Free Republic....