With the amount of wire transfers of money leaving the USA you would think that only 2% would turn out to be a large amount.
DHS: Border wall 'unlikely' to go from sea to sea
Department of Homeland Security Secretary John Kelly said it is "Unlikely" that the wall along the Southwest border of the United States will stretch "From sea to shining sea." The barrier will likely be a wall, fencing, electronic surveillance and personnel. Ref. Source 1p.
I figured it would not be a wall but a fence with more people down there to monitor the "Wall" to try to stem the flow of illegals pouring across our border. I could care less if it just a line drawn in the earth. Once you cross that line illegally you should be caught and deported.
Once we gain control of our border, which the wall will help but is not the cure in itself, we can start fixing our broken immigration policy. To start with we need to work on giving the people already here a path to citizenship.
Border wall could leave some Americans on 'Mexican side':
The border wall President Donald Trump has imagined could seal some Americans on the "Mexican side" - technically on U.S. Soil, but outside of a barrier built north of the river separating the two countries. Ref. Source 3v.