Hooded residents of Ayutla de los Libres, in the Mexican southern state of Guerrero, stand guard at a checkpoint on Jan. 19, 2013. Hundreds of civilians armed with rifles, pistols and machetes decided to create their own security squad for the communities of Tecoanapa and Ayutla de los Libres because of the presence of unidentified gangs committing robberies, kidnappings and murders.