The threats are more resilient; conflict is more likely.

Islamism, fascism, and communism are historical bedfellows—co-combatants against democracy in a Hundred Years War that continues today. The place of Iraq and the war on terror in a century of conflict. By Clark S. Judge.

A tale of two cultures—spies and cops—and why they just won’t mix in a single agency. Richard A. Posner on how to remake domestic intelligence.