Albuquerque, NM - Donald Trump’s push for a border wall is not a new idea. The U.S.-Mexico border is already lined with intermittent miles of barriers. In some places, a tall fence ascends desert hills. In others, sturdy wire mesh or metal pillars end suddenly.

The pieces come from different moments in history when the U.S. government wanted stronger barriers to halt unwanted immigration, drug trafficking, Prohibition-era bootleggers and even meandering cattle.

When Trump formally accepts the GOP nomination for president on Thursday, the billionaire will likely repeat his promise to build a single wall to stem illegal immigration and drug smuggling.

Historians say that idea has been pursued for a century with spotty results due to changing politics and technologies and pressure to divert enforcement attention elsewhere.... Read More: VIN