Both the government and the protesters seem eager to avoid an all-out confrontation. Not only would a Tiananmen Square-style massacre sully officials' claims to popular legitimacy, it would create a whole new set of martyrs who could further galvanize a popular movement. Such killings paved the way for the 1979 Islamic Revolution.
Most of the violence has been inflicted by semiofficial militias such as the Basiji or the secretive Ansar-e Hezbollah, which have reportedly been responsible for at least 12 deaths in the last five days.
