Tucson Samaritans volunteer Alvaro Enciso, left, and Rev. John Fife, right, point out to Guatemalan Bishop Armando Guerra, center, locations where migrants have died in the desert as the group prepares to visit the border fence and a migrant route near Sasabe. Photo taken Wednesday, September 25, 2013 in Tucson, AZ.

Ron Medvescek / Arizona Daily Star