Chinese President Xi Jinping shakes hands with Taiwan's President Ma Ying-jeou during a summit in Singapore November 7, 2015.
Edgar Su / Reuters

Diplomacy appears ready to make a comeback. The United States, after years of reluctance, is reconsidering the role of negotiation in confronting extremism and managing international conflict. India has resisted an aggressive response to the 2008 terrorist attacks in Mumbai and is open to diplomatic engagement with Pakistan over Kashmir. Participants in the six-party talks have been scrambling to decide whether, when, and how to engage North Korea since its nuclear test of May 2009. The generals in Afghanistan are busier today than they have been in recent years, but so are the diplomats. Certainly, not everyone has rushed to the bargaining

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