Nuclear Leakage

Nuclear power plants enable to us huge benefit. It can provide enough energy but it use so little material. But if there will be a leakage, what can we do?
The situation of leakage of nuclear materials from nuclear stations may create so serious and dramatic results for life. In such a case radioactive materials can effect a huge area around the nuclear energy station. In this area plants, animals, people may get sick and occurences of cancer highly increase.Cause of these risks nuclear energy stations must be kept under high control for not having undesirable results.