Nuclear energy is a clean energy source as it does not produce any waste gases that pollute the environment. It is available in abundance on the Earth, but is still considered dangerous. People are afraid of an MCA (‘maximum credible accident’ or a worst – case scenario), something like Fukushima nuclear accident in Japan in March 2011 and Chernobyl in Ukraine in 1986. In both cases, the chain reaction went out of control and resulted in explosion. As a result, hazardous fission products were released in the air exposing people to harmful radiations. Problems are also faced in the normal operation, but precautions are taken to avoid any mishap. The used up fuel rods must be treated or stored at a secure place.
