Risk and Reliability Are Part of Our Life

As we live in a highly technological world, surrounded by the Internet, biological technologies, high-speed trains and sophisticated aircraft, new energy sources, new social movement, wide wealth gap between the rich and poor groups and countries, political and religious differences, and so on, we have to face many new challenges which may either improve or threaten our living environment. All these ever-increasing challenges add new risks, and are in the scope of reliability for sustainability. However, the traditional approach of reliability, which looks into the failure free operation of systems, is far too simple, and has to be re-examined.