The Washington Post reports that "terrorism trend lines are 'worse than at any other point in history.'" But what is terrorism? It has frequently been pointed out that "terrorism" is a tactic, not an actual physical adversary, but it is less often noted that a simple definition of what constitutes terrorism is hardly universally accepted, while the designation itself is essentially political. The glib assertion that one man's terrorist is another man's freedom fighter fails to capture the distinction's consequences as the terror label itself increasingly comes with a number of legal and practical liabilities attached. Describing an organization as terroristic in order to discredit it has itself become a tactic, and one that sometimes has only limited connections to what the group in question actually believes or does.