The topic of this issue of the Journal of International Affairs requires little introduction, particularly at the end of a long year for autocratic rulers around the world. However, while many scholars have focused their attention on the causes of the Arab Spring revolutions—asking “Why there?” and “Why now?”—our aim is deeper. We asked our contributors, many of whom have first-hand knowledge of authoritarian regimes around the world, to examine the factors that underpin regime durability, not democratization. Our questions are, “Why not there?” and “Why not now?”