NIAC
Here is a little bit on the Basij from the report:
Compounding this reported cynicism, there appears to be a rural-urban split in public perceptions of the Basij, noted in a previous RAND study and reinforced to us in 2006 by a longtime visitor to the Islamic Republic. In the provinces, the Basij present a more benign face through construction projects and disaster relief, while in urban areas, they are more apt to be seen quite negatively, quashing civil society activities, arresting dissidents, and confronting reformist student groups on campuses. Urban sentiments may be, moreover, affected by the Basij’s affilia-tion with the “pressure groups” or hardline vigilantes, of which Ansar-e Hezbollah is the most widely known.