I still haven't found out what they are going to do with the prisoners..... any ideas??

Further to the post about addicts.
This could be a major cause of the looting. No addict is going to pass up an opportunity to hoard anything he/she thinks will make them enough money to buy drugs.
As they will also have problems obtaining money or drugs from legitimate sources (eg benefit cheques, atm machines, pharmacies )who can blame them.

The gun problem is also exacerbated by the fact that citizens of the USA are legally allowed to carry guns.