Editorial series: Leadership and legitimacy

Abu Ghraib, Guantanamo Bay and the waterboarding of suspected terrorists came to define U.S. power in the last eight years

Obama must rebuild old alliances and forge new ones, bringing the U.S. in step with a multipolar world.

What lessons have we learned since 9/11, and when should he send American troops into harm’s way?

Obama must emphasize diplomacy, set clear goals for military actions and adhere to the rule of law.