A woman wears a mask at a meeting during the "Caravan for Peace with Justice and Dignity", led by Mexican poet Javier Sicilia, in Juchitan, southern state Oaxaca, Mexico, Tuesday, Sept. 13, 2011. Sicilia, whose son was killed allegedly by gunmen belonging to a drug gang, organized the peace caravan through cities and states in southern Mexico affected by drug-related violence. (AP Photo/Eduardo Verdugo)