"Until the 1990s, it was relatively easy for folks in Mexico to come to the U.S. and folks in the U.S. to go into Mexico," said Louis DeSipio, a professor of political science at the University of California, Irvine. "Creating this new arbitrary situation of 'you can touch right here but not there' is a new development in the long history for the U.S. southern border."

For the full story, please visit http://www.msn.com/en-us/news/world/at-a-border-fence-families-are-so-close-and-yet-so-far/ar-BBwAluS.

 

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