I think the feds know that if they squash them all (which would take a significant amount of manpower) someone else would pop up and fill the void... maybe someone more violent. You are always gonna have some form of OC, the only question is who it is gonna be.... and since the feds also have other things to focus on, such as terrorism and street gangs, they have to tolerate OC to a certain extend.... btw, when was the last time someone got clipped by US LCN?