Actually, MOAB's would be overkill. The police just have to start shooting back. I remember once a while ago a poster in FR, one of our soldiers, said that he had served alongside some French units at one point (I forget where) and that the actual soldiers themselves where quite professional and willing to fight. It's their leaders who are the surrender monkeys.
I'm sure if the French police were taken off their very short leash, these riots would be over in a day.
On the wall you can read Nique La Police, and "Nique" is an Arabic word but they wrote it in Latin Alphabet. Nique means F***. They are saying F*** the police.