Historically, coal-fired power plants have been much more dangerous for humans than nuclear power plants. I think the record shows that nuclear power is on the whole pretty safe.
Regarding proof: I don't think anything has been proven, yet, except that there have been a lot of powerful forces at work with this disaster.
Regarding proof: I don't think anything has been proven, yet, except that there have been a lot of powerful forces at work with this disaster.