mexico. >> after coniferiffring with th experts the president has confirmed he knows part of it will be a physical wall and part of it technology and part of it will also be fencing. there are rivers involved, mountains involved, and terrain that isn't conducive to building an actual structure in some places. >> you realize the true magnitude of the things you have to manage, and then there's just up is up and down is down and the president when confronted with this information -- he knows this, or he should know it. is this a potential opening to get daca and maybe more? >> to your latter point, christine, i think that everyone