It is at this aid station that migrants, just dumped by Department of Homeland Security or privately contracted Wackenhut buses and made to walk into Mexico, can be cared for by NMD volunteers with medical training, as well as by Red Cross volunteers and Nogales locals.
This year's spring-breakers aside, veteran NMD volunteers make regular treks to the aid station — little more than a large tent augmented by a couple of trailers and surrounded by a new chain-link fence. The fence is to keep out so-called polleros, or "chicken wranglers," as coyotes are popularly referred to in these parts.
Stephen Lemons
Former Presbyterian pastor John Fife helped lead the Sanctuary Movement in the 1980s, and co-founded No More Deaths in 2004.
Stephen Lemons
Tohono O'odham tribe member Mike Wilson leaves water jugs in the sign of the cross for migrants on the reservation.
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Tucson nurse Sarah Roberts, a longtime NMD volunteer who also participates in Samaritan patrols, visits the aid station every Wednesday. There she treats the massive foot blisters the migrants suffer, in addition to a variety of other ailments, such as sprained ankles, broken bones, lacerations from falling, and dehydration.
"In the hot weather, we see a lot of dehydration," she says. "And muscle cramps from being out in the desert heat with not enough water, not enough electrolytes."
That the migrants still have these complaints — after being held by the Border Patrol for a short duration or after going through federal court in Tucson (as a small percentage do, under a program called Operation Streamline) — is a sore point for activists like Roberts.
As a result, Roberts and other No More Deaths volunteers catalogued tales of migrant abuse and mistreatment at the hands of the Border Patrol in a 2008 report called Crossing the Line.
Available at www.nomoredeaths.org, the report calls for the humane treatment and care of migrants in short-term detention. The data comes from the Mariposa aid station, as well as from other migrant aid stations NMD partners with in the Sonora towns of Agua Prieta and Naco.
In Nogales, Sonora, the aid station is a model of cooperation between NMD and other aid groups, including Sonoran state agencies such as the International Migrant Affairs Directorate, known by the Spanish acronym DGAMI.
Omar Pinada, a coordinator with the agency, says that though the Mexican government provides the property the aid station sits on, everything else — from the fence around it to medical aid Roberts helps with — is volunteer oriented.
"They give us sugar, coffee, cups," says Pinada of the donations brought by NMD workers to the station. "The government doesn't have the money to buy all this stuff. No More Deaths helps us, so we help them."
After Roberts cares for those at the aid station who need it, she and other volunteers (if any have come with her from Tucson) make a five-minute walk to the nearby comedor (soup kitchen) run by Jesuit priests and Catholic nuns, with the help of the Diocese of Tucson and the Archdiocese of Hermasillo, Sonora.
At the comedor, which offers two meals daily prepared from food donated by charity groups, sometimes more than 100 recently repatriated migrants at a time squeeze themselves into the metal picnic tables there and gobble down whatever stew has been whipped up for them by volunteers.
Afterward, they comb through clothing and other items brought from Tucson by Roberts and other NMD activists. Roberts tends to their medical needs as best she can, sometimes bandaging a twisted leg or a swollen knee. Sometimes offering over-the-counter medications for cold or flu-like symptoms.
During one visit, she says, she fretted over one young man's abdominal pains. She ended up giving him Pepto-Bismol but worried that it could be something worse.
"I can't really do a proper examination here," she muttered.
Despite the frustration, Roberts is driven to help, in part, by the sights she's seen while out on patrol with No More Deaths and the Samaritans. She describes an incident she encountered near the Arivaca camp — an act of charity by the father of a migrating family toward a man whose sprained ankle Roberts had just treated.
"They didn't know each other," Roberts says. "The man with the family noticed that the man with the sprained ankle needed some good shoes, and he gave him his shoes. What courage and compassion."
No More Deaths is hardly an evangelical group, but a strand of religious inspiration runs through the organization, as well as through the entire social-justice community that has arisen to address Arizona's desert mortality rate.
Though many NMD volunteers eschew the term "religious," NMD touts a list of "Faith Based Principles for Immigration Reform" on its Web site. Training sessions for new recruits often take place in Southside Presbyterian's worship hall, modeled after a Native American kiva, or ceremonial room.
On the water jugs that volunteers put in the desert, there are often religious messages in Spanish inscribed for the benefit of the migrants. On some, the three crosses from Calvary are drawn. Yet, during training sessions, Christianity is not proselytized, and no prayers are said.
Gene Lefebvre acknowledges the spiritual element and notes that among NMD's founders were pastors, Catholic leaders, and rabbis. But he stressed that NMD is open to all comers, including non-believers.
"We call it a faith-based group, a group of people of faith and conscience," Lefebvre says, "but we deliberately wanted it to be open and not draw any lines about religion or anything like that.