Concerns Of Nuclear Power Plant Radiation In Japan Disaster?

One of the lessons of innovation is always have a plan B. In the recent Japan earthquake there is a concern for nuclear power plant radiation among all the other concerns of the horrific event. The 8.9 quake caused a huge fireball explosion at a nuclear power plant. This is the worst Japanese earthquake in recorded history. It would be difficult to plan for an event of this magnitude, but I think that nuclear power plant site construction will be reevaluated  world wide. This could reinvigorate the safety concerns of the nuclear power.