This '90s clip shows part of the United States' border with Mexico and the monitoring of this wall by a US Customs and Border Protection guard. 

Clip begins with a hand pushing a button, perhaps to open an entryway between the border. A fence-like wall between Mexico and the US extends into the distance. 

A border patrol officer looks through binoculars from a watch tower, monitoring the border wall. Close-up of a chainlink fence protecting some area.