Carmen Aristegui spoke with Emiliano Ruiz Parra, author of "Swallows: a marginal neighborhood the size of the world."
The book portrays life in an area on the outskirts of the municipality of Ecatepec, State of Mexico.
These neighborhoods share characteristics, even if they are in any country in the world, considers Ruiz Parra, who wanted to "universalize" his history.