it stretches out into rugged, remote terrain in the arizona desert. in the past, donald trump has said he wants the wall to be a solid impenetrable wall, unlike what exists in most parts of the border today. >> it is the rio grand valley. >> yes. >> reporter: this is a common sight here. >> this is very common sight. so this is the wall that george bush built us. ha, ha. the fence. >> reporter: secretary kelly says federal agents on the ground want barriers they can see through not the solid walls trump has talked about and there are some areas that might not need a wall at all. >> we won't build it all in an afternoon so we'll build it in the places that people that work that border say we need it right now. maybe there are some places that are too rugged to put a wall and we that with patrolling and technology. >> eddie, you're live in dallas. is there a disconnect between the president and the rest of his administration on this? you saw the people who live on