I wasn’t clear that one of the 6 models of wall had even been fully approved. Now Trump is talking about steel slats. What style wall is he hoping to build?
Enlarge your idea of a wall......all areas will not support “a wall”....there are already high and large slated barriers, (BTW what the border patrols requested) going up....the work has been going on for awhile now. But what will be used will depend on the ground, terrain and where it's going.