Mexico said on Monday it would use satellite imagery to monitor key railway lines running toward the U.S. border to ensure the safety of the tracks and to help stem the flow of illegal immigrants heading north for the United States.
A top interior ministry official said a dozen satellite-monitored vehicles are to be deployed ahead of cargo trains near Mexico's southern border with Guatemala that Central American migrants often jump on as they journey north.
The vehicles will be charged with monitoring the tracks, relaying real-time data on damage as well as on migrants seeking . . .
