a medieval problem. people sweeping across europe borders. romans dealt with it. 2,000 years ago, the solution then was a wall. the chinese built a wall, english built a wall, israel built a wall, they work. why wouldn't it work in arizona? >> good many reasons.n one is cost, tucker. 10,000 years, mankind has beenn building around walls around things. one would think in 2017 with the robust array of resources we have, o resources, we can come up with a better solution. i am absolutely a proponent of securing the border. my fear is we are continuing this dialogue of a wall, a wall, a wall, which, to many of us, doesn't seem credible. and in that, we are losing the more serious discussions about how to better secure our borders at a lowerbe point, more effectively. that's my concern. the porous nature of our border is a national security problem, it's a public safety problem, human rights problem. all manner of transnational crime is coming where the border is. p