The article looks at Western Muslims fighting as volunteers in Syrian and Iraqi insurgencies, with a particular focus on concerns that these fighters could return to their home countries and engage in terrorist activities. According to the authors, this danger has been overstated. It is suggested that few surviving fighters will return home with violent intentions, and that those who do will be noticeable enough to be apprehended by security officials before they act. Other measures to prevent terrorist actions, such as disrupting common transit routes and increasing funding to security services, are also discussed.