The volunteer activists who search for the bodies of their missing relatives have long been under threat in Mexico. But this week one of them took the unusual step of issuing a public plea to drugs lords in the northern border state of Sonora, to allow the "Searching Mothers" to do their work.
Family members of victims have accused authorities of being ineffective and have undertaken their searches in various "extermination camps" despite the dangers it poses.
A mother pleaded desperately with a soldier for a chance to find the remains of her son, one of more than 95,000 people whose disappearances haunt violence-plagued Mexico.
La crisis de desaparecidos en México: más de 52,000 cuerpos sin identificar telemundo.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from telemundo.com Daily Mail and Mail on Sunday newspapers.