There are alot of negative misconceptions people hear the term 'nuclear as a form of energy. Agreeably there have some tragic disasters in the past and in order to prevent a major nuclear disaster occurring again, all nuclear power plants have an extensive system of back-up & safety systems. From a scientific point of view regarding nuclear energy, there are few dangers. Nuclear energy involves the usage of radioactive elements, such as Uranium and Plutonium, which are used to generate energy. Typically, to produce the energy, an atom (of uranium or plutonium) is bombarded with neutrons (small subatomic particles that have no charge). Think of it like playing a game of pool, where the balls go in various directions when hit by the cue ball. This process is known as fusion, and this reaction releases radiation and energy. Water is crucial to this process, and the energy turns the water into steam which generates turbines that are used to generate energy (usually in the form of electricity). Unlike using other types of energy forms (oil, coal, and natural gas), nuclear energy does not produce air pollutants. Probably the most common "danger" is that the water that is used in the process has to be cooled and then returned to a nearby water source (most nuclear power plants are built on lakes for this reason). If the water is too warm when it is put back into the lake, it can kill the fish quickly. The main problem with nuclear energy is what to do with the waste radioactive material. Right now, most of it in the US is being buried underground in Nevada.

Nuclear energy if properly used is the most efficient and best source of energy

Problems being - very dangerous, very difficult to dispose the nuclear waste