"History doesn't repeat itself, but it often rhymes," Mark Twain once said—and nowhere does it feel more apt than today, as recent upheavals in South Asia echo the Arab Spring that shook North Africa ...

With long-standing U.S. allies toppled or under pressure from unprecedented dissent across the Arab world, Michael Doran, in "The Heirs of Nasser" (May/June 2011), warns that Iran is poised to walk ...