Friesendorf and Daase, both researchers from the Peace Reasearch Institute Frankfurt (PRIF), establish in Rethinking Security Governance the problem of unforeseen consequences that are the result of the implementation of almost any security policy. The results of this book confirm that many, but not all, consequences are problematic, due in part to the fact that the effects of a security policy have become contingent on an infinity of factors that make it highly complex to attribute to what extent success was due or the failure of a particular policy.