Hitting the Wall

Riding horseback along the 18-foot border wall in Southern Arizona's Buenos Aires National Wildlife Refuge, Interior Secretary Ryan Zinke talked border security with Tucson Sector Border Chief Patrol Agent Rodolfo Karisch.Riding horseback along the 18-foot border wall in Southern Arizona's Buenos Aires National Wildlife Refuge, Interior Secretary Ryan Zinke talked border security with Tucson Sector Border Chief Patrol Agent Rodolfo Karisch during Zinke's first official visit to the border, on Ma