Mexico and Guatemalan border agreement

Mexico has strict and swift border enforcement, so how are all these kids getting to the U.S.? Mexican President Enrique Peña Nieto and Guatemalan president Otto Perez Molina met earlier in the month to work out new border agreement that gives them a 72 hour "gate pass" to travel through Mexico to get to the U.S. border. Mexico will provide medical aid, financial assistance and safety protection for these children--for 72 hours--and then it's our problem.

https://www.numbersusa.com/news/mexico-guatemala-announce-agreement-make-illegal-passage-us-easier