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A pair of giraffes run in a field in Nairobi National Park in Nairobi, Kenya, on May 3, 2015, as seen while U.S. Secretary of State John Kerry made a wildlife tour and visited the Sheldrick Elephant Orphanage before a series of government meetings. [State Department Photo/Public Domain]

U.S. Department of State

The Lessons of 1989: Freedom and Our Future