sentences:  According to the Nuclear Regulatory Commission, 20 states in the USA have requested stocks of potassium iodide which the NRC suggests should be available for those living within of a nuclear power plant in the unlikely event of a severe accident.Radioactive iodine (radioiodine) is one of the products that can be released in a serious nuclear power plant accident.Potassium iodide (KI) is a non radioactive form of iodine that may be taken to reduce the amount of radioactive iodine absorbed by the body's thyroid gland.