What is the key concept for this section? What is nuclear fission? How does a nuclear fission reactor work and what are its major safety features? Describe the nuclear fuel cycle. What three countries...

What is the key concept for this section? What is nuclear fission? How does a nuclear fission reactor work and what are its major safety features? Describe the nuclear fuel cycle. What three countries are the three leading users of nuclear power? What percentage of the electricity generated in the United States comes from nuclear power? What is the relationship between nuclear power plants and the spread of nuclear weapons? Explain how highly radioactive spent-fuel rods are stored and what risks this presents. How has the United States dealt with the nuclear waste problem? What can we do with worn-out nuclear power plants? Summarize the arguments over whether or not the widespread use of nuclear power could help to slow projected climate change during this century. Summarize the arguments of experts who disagree over the future of nuclear power. Describe the Fukushima Daiichi nuclear power plant accident and list its five major effects. What is nuclear fusion and what is its potential as an energy resource?