When we see footage of nonviolent protesters being brutally beaten by police and militia members, it is painful to deliver the message that, if history is a guide, continued street protest will make the difference between Iran being like Myanmar or, possibly, like Czechoslovakia. Time and again, when mass street protest has been sustained for more than a week or two, a regime – even one that has begun beating and arresting protesters –eventually finds it practically and psychologically difficult to sustain its hold.