In 2012, Chairman of the Joint Chiefs of Staff Gen. Martin Dempsey contended that “we are living in the most dangerous time in my lifetime, right now.” In 2013, he was more assertive, stating that the world is “more dangerous than it has ever been.” Is this accurate? In this book, an edited volume of papers presented at the Cato Institute's Dangerous World Conference, experts on international security assess, and put in context, the supposed dangers to American security. The authors examine the most frequently referenced threats, including wars between nations and civil wars within nations, and discuss the impact of rising nations, weapons proliferation, general unrest, transnational crime, and state failures.