In still other words, what if we chose to accept the fact that every few years, despite all reasonable precautions, some hundreds or thousands of us may die in the sort of ghastly terrorist attack that a democratic republic cannot 100-percent protect itself from without subverting the very principles that make it worth protecting?
Is this thought experiment monstrous? Would it be monstrous to refer to the 40,000-plus domestic highway deaths we accept each year because the mobility and autonomy of the car are evidently worth that high price? ...
What are the effects on the American idea of Guantánamo, Abu Ghraib, PATRIOT Acts I and II, warrantless surveillance, Executive Order 13233, corporate contractors performing military functions, the Military Commissions Act, NSPD 51, etc., etc.? Assume for a moment that some of these measures really have helped make our persons and property safer—are they worth it?
--David Foster Wallace, The Atlantic, on the trade-off between liberty and security