Day 4 of the annual National Nuclear Science week is all about Nuclear Safety.
The use of either fission of atoms, or decay of radioisotopes to benefit man (whether that benefit derives from the production of electricity, the diagnosis of a medical patient, the preservation of food, or many other things) brings along with it a serious responsibility to ensure the safety of not only all involved with the process but those uninvolved as well. To this end, a tremendous amount both of time and money are spent by all organizations designing, operating, or using nuclear technology as well as governmental oversight agencies (often called "regulators," such as the US Nuclear Regulatory Commission.)
The American Nuclear Society's Center for Nuclear Science and Technology Information has a great page covering the many, varied aspects of nuclear technology safety. Click here to access this CNSTI page.
Don't forget-you can visit the Nuclear Science Week official website for much more information, including lesson plans, and other resources.