This book is a timely intervention within current debates about the role of religion, politics, philosophy and the public square. I was reading it as the Western World was once again reflecting (and in a not very coherent or analytical way) on the tenth anniversary of 9/11. As Kahn persuasively reminds us, international terrorism inextricably linked to religious imaginaries has forced liberal democracies and liberal intellectual disciplines to wake up to the real nature of politics: the themes of sovereign decision; the power of the exception rather than the bureaucratic norm; the lure of sacrifice and martyrdom; the will to act and choose authenticity rather than the use of reason or appeal to the norm. These are the seductive and destructive options that the international and religiously inspired terrorist offers us.