Do you live near a nuclear power plant? Do you have concerns about your safety? Want to know how they work? Want to know how to prepare for the worst? This might end your information search! Check out this website, provided by the United States Nuclear Regulatory Commission. There are variety of topics, ranging from nuclear security to radioactive waste and even searching for active reactors near you!
I searched the nearest plant to me, Perry 1. Below is the associated page. This is a great tool for local preparedness.
Another good source for knowledge about Nuclear Radiation, Power Plants, and other Nuclear Disasters is this document by the Red Cross: