Automation protects against unsafe conditions and human error. It is the key to safety in the nuclear power industry. This is the message of this book, written by Béla Lipták, a consultant with more than 50 years' experience in automation and industrial safety. After reviewing the Three Mile Island, Chernobyl, and Fukushima accidents, he not only concludes that safety automation could have prevented all three, but also explains why they occurred and what was needed to prevent them.