In this May 28, 2015 photo, members of the fast response police units, known as Halcones, detain a suspected gang member, who was found out of breath on a bed following a chase by police, in San Salvador, El Salvador. Observers blame the worsening insecurity on the breakdown of a 1.5-year-old truce between the gangs and the government. While the homicide rate plunged, critics say the truce gave the gangs time to strengthen, train and acquire heavier arms than they had in the past. (AP Photo/Manu Brabo)