Hundreds of members of autodefensas — vigilante "self-defense" militias composed largely of fed-up farmworkers — patrol the streets of semi-rural suburbs with ancient rifles and shotguns, hoping to rid them of the drug cartel thugs who have terrorized them for years.

◼ Mexico's Guerrero state teeters on the edge of chaos - LA Times

Guerrero, like Michoacan, has seen vigilante autodefensas take up arms against a drug cartel, and some worry that local leaders are complicit.