(Matt York | The Associated Press) A U.S. Customs and Border Patrol agent patrols a area of sand dunes Wednesday, July 18, 2018 along the international border with Mexico in Imperial County, Calif. 126-miles of border cuts through the Yuma Sector where thousands of families and unaccompanied children are continuing to cross into Arizona and California even after learning of the government's family separation policy upon apprehension.