For over a week, a bus full of mothers from Central America has traveled across all of Mexico displaying the photos of their disappeared children. We're on the road with them, and have just arrived at Saltillo, Coahuila. The thing is even after years, they find people. Thread:

2/ There are people who disappear because they have fallen into the hands of organized crime. Their families receive calls demanding thousands of dollars. Others disappear because they are forced to assist drug cartels, participate in sex work, or obey an abusive partner.

3/ Even so, the @MMMesoamericano has found people who have escaped from those circumstances. They have reunited people who suffered memory loss, those whose phones were stolen, those who remained incarcerated, or those who feared disappointing the parents they left behind.

4/ Two sister met one another last week after fifteen years. A mother embraced her son who she had not seen in thirty years, and who she assumed was dead. A mother who was told, years ago, that her son was about to be deported and never heard from him found him in a prison line.

5/ Many of the photographs that people are carrying are more than ten years old. You assume that people do not look the same as they did when they left, especially if they were teens when they left home, and are now adults approaching middle age. But it's possible to find them.

6/ Many people have been killed, because of how risky migration has become in recent years. Forensics databases are limited in Mexico, and their remains were never returned to their countries. There's no proof. And yet last week a Salvadoran woman met her kids after thirty years.

7/ Here's a photograph. I have few times in my life seen anything so moving as a family after thirty years of having been separated, without any way to find one another after an armed conflict, finally hold one another. They trembled. Due to @ProbusquedaSV and @MMMesoamericano

See photographs from Salvadoran photographer @felipao_84, whose beautiful work you can see at http://www.instagram.com/felixsh84 . He's been on the road with the caravan since it departed from El Salvador. Find out more from @MMMesoamericano.