This youtube piece is a documentary on the gang MS 13 (also known as Mara Salvatrucha). This video is of poor quality and simply takes the approach of assisting community awareness. I found no quality analysis of their historical development. What caught my attention is that the documentary claims this gang originated in El Salvador. Supposedly M 13 originates from men that fought in El Salvador's Civil wars from the 1980s. They are reportedly trained in guerrilla tactics. If this truly is the case, it puts the legacy of US intervention in South and Central America on a whole different level: It brings the aftermath of the US Cold War to the home-front. I'm asking anyone reading and watching this to post information regarding this topic. It seems the need for an added critique of US foreign policy is waiting in the wings.