I live about 6 miles from a twin reactor plant,
and I used to be stationed at the fire station less than a mile down the road from it.
Every year my whole fire department attends mandatory training at the plant for possible emergency situations, concluding in a tour of the whole plant.
EVERY SYSTEM in the plant has redundant backups, they have at least 4 (that I know of) seperate cooling systems that are all capable of running the plant (and handling an emergency) by themselves.
They also have several ways to HALT the reaction with the fuel rods.
The fuel rods are suspended by electro-magnets, and can be "dropped" with a push of a button, and flooded with boron.
If a failure WERE to happen,...they have ALOT of time before they have to "vent off" radioactive steam.
Which they would more than likely be able to avoid by using the MEGA gallons per minute cooling system to re-condense the steam.
ALSO...([i]as opposed to some people's belief[/i])...A power plant emergency will NEVER cause a nuclear explosion, it is a COMPLETELY different type of reaction, and fuel rods are not weapons grade material.
Chernobyl was a very different type of power plant than anything used in the U.S.
It had no containment building, and used a different cooling mechanism.
A coolant pressure explosion blew that plant open, sending radioactive material everywhere.
It would take quite a bit to cause anything of major concern to happen here.
Im more scared driving on the roads down here than I am living near the power plant