The article discusses a new method to assess the risk of dam failure in tailings dams. It suggests treating certain factors as random variables and using a Monte-Carlo model to calculate the probability of dam failure. The researchers also developed a model to predict the flow of tailings after a dam failure. By considering factors like loss of life, financial, and environmental losses, they calculated the overall impact of dam failure. This approach helps determine the level of weakness in a tailings dam and improve its security assessment for safe operation.