Informative Article About Border Fencing

In May 2017 'CATO Institute' republished a piece entitled, Why The Wall Won't Work. It is the most informative article I've read.

I'm certain most people won't have the attention span to read it in it's entirety. However for those who truly want to understand all the complexities involved it is a must read.

Putting aside the politics here are few things I found interesting. 2/3rds of the border land is privately owned.
Flooding can be a major problem destroying fencing in some areas.
Maintenance costs are in the millions.
Some of the border is separated by hundreds of miles of arid wasteland.
All types of fences can be cut through in minutes.
"From 2007 to 2010, the Border Patrol found more than one tunnel per month, on average."