Yeah there are protests in Urmia and Tabriz over the ecological disaster, but you think those are the only malcontents in Iran? As Karmand News points out, there are a whole lot of plain-clothes enforcers who haven't gotten paid in a long time. And let me promise you, those skulls won't crack themselves, so if Ahmadinejad wants to put down the other protests --- you know, the ones by troublesome opposition and Greens --- he better pick up a baton or pay up.
On the morning of 26 July 2011, around 150 Basijis from Kermanshah gathered outside of the Majlis building in Tehran to protest not being paid wages. According to one protester, although Ahmadinejad agreed in 2006 that Basijis should receive at least a wage equivalent to that of lower-level government employee, they have yet to be paid a salary. They are instead given only a small sum once per year.
Furthermore, according to the 5th Development Plan [for 2010 to 2015], Basijis who fought in the Iran-Iraq War and were on the front lines for more than a year are eligible to receive a pension and health benefits. The Basijis, however, have yet to receive these benefits.