You don't understand... ;) The Liberals BLAME America for these Salvadorian gangs. They say that they learned this lifestyle originally in the US and California. Therefore, it would be unfair for us to deport them.
They might have gotten some of the tattoos and trappings of gangsterism from the West Coast (or from MTV), but gangs have long been a problem in Latin America, where there is a weak and corrupt police presence and the gangs have been able to control entire towns unopposed.