1) A 12 mile radius exclusion zone (& larger radius which people will avoid) is huge in a small country like Japan. Do you really think that Japanese people have chosen to have among the highest population density in the world even though they have a bunch of unused land?
When we consider how common Fukushima's reactor design is, and how reluctant power companies are to invest in new reactors, despite proven safety problems with their design, a disaster like this seems almost inevitable.
2) American nuclear workers carry dosimeters and are closely monitored. Children operate in a very different environment. Children are more susceptible to problems than adults, since they are still developing. I doubt that a nuclear plant would allow a worker to bring their child with them as they are exposed to radiation.
3) The loss of so much electricity in the Tokyo area has caused shortages in many components crucial to Japanese and global commerce. There is nothing innovative about turning off the air conditioning in an unplanned 30% loss of power. There is something deeply honorable about it though.
Summary: Large scale electric generation will always have drawbacks, but it's foolish to ignore their potential for destruction. As far as I know, the only part of Japan that 6 months after the Tsunami is uninhabitable by humans surrounds Fukushima.
I don't oppose nuclear power, but when the risks are ignored or downplayed (like in your post and in TEPCO's policies) a nuclear disaster is inevitable. And when people notice that you've been downplaying the risks, their unlikely to trust the industry to build new reactors, even though they improve safety.