Plutonium is not cheap. Uranium is not cheap. Redundant safety systems are not cheap. Pressure proof concrete vessels are not cheap. Industrial grade power turbines, also not cheap. The list goes on and on.
Plutonium is not cheap. Uranium is not cheap. Redundant safety systems are not cheap. Pressure proof concrete vessels are not cheap. Industrial grade power turbines, also not cheap. The list goes on and on.
Actually, they are, given the amount of energy that they contain.
> Redundant safety systems are not cheap. Pressure proof concrete vessels are not cheap. Industrial grade power turbines, also not cheap. The list goes on and on.
This line of "thinking" tells us to buy our dump trunks from Tonka, because Tonka's trucks are far less expensive than Caterpillars. (BTW - those items are a small fraction of the cost of a nuclear power plant. Add in the rest of what it takes to make power, safely control the plant, AND verify that you're doing so, and you're still at a small fraction of the cost of a plant.)
One can't make sensible decisions by looking at costs xor benefits in isolation.
Whether regulations like that are a problem or a solution is a source of endless debate depending on your political position. But given recent events in Japan, it is clear that we are headed for more regulation, not less.
The result is public pressure for regulation.
Unfortunately economic theory and practice show that once an industry has come under regulation it becomes their priority to get control of that regulation. This process is called "regulatory capture" and inevitably succeeds. Once it has succeeded, the protections erode and the regulatory scheme is used to create barriers to entry for competitors. See the recent financial crisis for an example of this.
Depending on your politics you are likely to think that one of these failure modes is a bigger deal than the other.
Sometimes the third option of going to an industry and asking them to do something does work, but not always. I'd always try it first, but it's not always going to work, and the consequences of inaction can be pretty bad.