When Mohamed Bouazizi set himself on fire in Sidi Bouzid, Tunisia, in December 2010, sparking a wave of popular uprisings that would topple dictatorial regimes across North Africa and the Middle East, observers hailed the onset of a great "Arab Awakening." But this wasn't the first time people in Tunisia, Egypt, and elsewhere across the region had taken to the streets demanding fundamental change. An earlier generation, in the 1950s and 1960s,...