The problems in Iran, on the surface, are the result of a disputed election, but when you dig a little deeper the real difficulty, at its core, is a conflict of beliefs. To change regimes then, there must be a change of ideas. Since the street protests are to be truly effective, must begin with a different kind of campaign. Force will try to the situation, the current regime to find justification for their own violent repression.
If you are using a system constantly as a threat as a force for change, public Gekantheid, to thwart actions? The only way to fight against the current regime is discover that ideas and beliefs, which are at the root of the problem and the attack at this level.