So first off...  This ain't ever gonna happen.  What he's selling you is a pipe dream.  You're a fool if you think he's building a "great wall". 

 

<p style="color:rgb(0,0,0);font-family:'proxima-nova', 'Helvetica Neue', Helvetica, Arial, sans-serif;font-size:16px;">Number One: We will build a wall along the Southern Border.

<p style="color:rgb(0,0,0);font-family:'proxima-nova', 'Helvetica Neue', Helvetica, Arial, sans-serif;font-size:16px;">On day one, we will begin working on an impenetrable physical wall on the southern border. We will use the best technology, including above-and below-ground sensors, towers, aerial surveillance and manpower to supplement the wall, find and dislocate tunnels, and keep out the criminal cartels, and Mexico will pay for the wall.

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