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John W. Mackey

John Mackey is a senior lecturer and associate chair of the Social Sciences Division in the College of General Studies at Boston University

Children walks past a Loyalist mural in East Belfast a predominantly loyalist area in Belfast, Northern Ireland, Friday, March 24, 2017. Almost 20 years on from the Good Friday peace accord, which brought about the end of Northern Ireland's sectarian conflict, the city of Belfast has changed dramatically. Reminders of the past are everywhere _ murals and memorials to those killed in the conflict, along with peace walls that separate predominantly Protestant neighborhoods from mostly Catholic ones _ but there are also new shopping malls and cafes, new tech industries, and lots of tourists. (AP Photo/Peter Morrison) (AP)

From certain war to uncertain peace: Northern Ireland’s Good Friday Agreement turns 20

John W. Mackey

Bernie Sanders (Reuters/Mary Schwalm)

Sanders’ victory: How Bernie ended the Cold War in 2016

John W. Mackey