One way which we might kill ourselves off

Something that has been bothering me for a while is why people still use nuclear energy, it's like people never learn their lesson. Have the completely forgotten about the Chernobyl incident or the three mile island? One of the last ways that I would want to die is by a nuclear explosion.

One of the leading providers of energy is nuclear power, so imagine all those nuclear power plants out there. If they were to go off we would all die, there would be no livable locations left on earth due to all the radiation. Now I know I sound like a hippy, but I tend to care about being killed in nuclear explosions.