For many years, there has been a vigorous debate in this country about the safety of the nation's 72 nuclear energy power plants.

That debate is likely to be intensified because of what happened early this morning at a nuclear power plant in Pennsylvania.

It was an accident at the Three Mile Island Nuclear Power Plant, which is located on an island in the Susquehanna River, 10 miles from Harrisburg.

Throughout the day, chaos and confusion reigned as monitors tried to determine exactly how much radiation was released.

Japan says radiation inside one of its nuclear plants is 1,000 times its normal level.

The plant has reportedly lost control.

Radioactive fallout from the Soviet nuclear accident has reached Britain.

Raised radiation levels were detected in the south.

A large demonstration has taken place in Tokyo calling for an end to nuclear energy in Japan.

It comes just over six months after the earthquake and tsunami that crippled the Fukushima power plant

and was one of the biggest protests since the disaster.

To propel this new era of American energy dominance.

First, we will begin to revive and expand our nuclear energy sector,

which produces three renewable emissions free energy.

Hello again, I'm Armin Alney.

In the history of nuclear power, accidents have been rare,

but they've been terrifying and vastly expensive.

The cost of building new reactors has been rising too.

But now climate change may give new life to a troubled industry.

Replacing the fossil fuels that generate greenhouse gases is an existential challenge to civilization

as we know it.

Developing alternative sources of energy is a race to prevent destruction.

...