in recent decade society is highly concerned about major drawbacks of nuclear power, especially growth of nuclear stocks in Middle East, as they can be used for nuclear weapon production and could ignite nuclear war. Another disadvantage is raising amount of nuclear waste that comes from nuclear power plants. Due to the fact that it is very expensive and in some cases even impossible to degrade radioactive waste, most of the countries have decided just to collect and store it for unknown period of time in underground warehouses. Although several scientific groups are pursuing a sustainable disposal technology for decades, there has not been a significant progress. In my opinion, probably the biggest threat for the society is nuclear power plant failures that could lead to disastrous consequences both to environment and human being.