In 1971 , there were 321,326 the Southwest Border Sectors agents in U.S. Border Patrol . Study : Apprehensions of unauthorized immigrants are at their lowest level since fiscal year 2011 . More fact checks : Obamacare | Gas mileage | Wind energy . The figures can be tough to interpret .
In 1971 , there were 321,326 the Southwest Border Sectors agents in U.S. Border Patrol . Study : Apprehensions of unauthorized immigrants are at their lowest level since fiscal year 2011 . The figures can be tough to interpret .