President Trump and his experts must certainly continue to fight the
fanatics of Islamic State, and no doubt they are thinking ahead to what
IS might be preparing to do to again
disrupt the already shaky international order. But combating IS demands
more than military expansion and improved battlefield tactics. The major
challenge is for leaders of all the world’s nations to acknowledge the
possibility of a dirty bomb attack and prepare their citizens to cope
with it. Panic could be the Islamic State’s most effective weapon.