Iranians protesting against the results of the June 12 presidential vote face multiple state security groups whose aim is to lay down the law.<br /><br />From the Revolutionary Guards, the most formidable force, to the Basij, a paramilitary group loyal to the government, security forces have been on the streets since the polls opened.<br /><br />Now, as Al Jazeera's Roza Ibragimova reports, the security forces say they will no longer tolerate the unrest.
