History can be a good friend of confirmation bias. We often look to the past for lessons that support beliefs that we already have instead of the ones best supported by a deep analysis of the evidence.

Editor’s Note: May 22, 2018, marked the twentieth anniversary of referenda in Northern Ireland and the Republic of Ireland that laid the groundwork for one of the most celebrated peace accords in the mod...

Editor’s Note: Tension between the United States and China is rising, and several problems in the region could even lead to war—a frightening risk that deserves serious attention. Oriana Mastro, my colle...