Just got off the phone with my dad. He leaves in northern tehran... He said that most iranians believe that a lot of the basijis [plain clothes officers] on the bikes are hezbollah arabs brought in to do to the citizens what a persian cop would refuse to do. Accordingly when the protesters knock one of the basijis off their bikes they are being particularly brutal, believing that the rider is arab. Regular uninformed cops are not being pursued with the same anger.It's a long-running pattern with dictators to cultivate a thug-class which is alienated from the population being controlled, who have no economic alternative to being a thug, and who know that things will go badly for them if the regime goes down.
Iranians need to throw off the arabized yoke and that ridiculous arabic-islamist faux "culture" forced down their throats for 30 years.