"6.1billion"
These days, 6.1 billion is not so much money. I believe it is less than the current cost of one Nimitz-class aircraft carrier and its air group. It would be money well spent. And you are quite right about the long-run savings.
The wall would be intended to prevent illegal immigrants and potential terrorists from hiking across the southern border into the United States. It would run along five segments of the 1,952-mile border that now experience the most illegal crossings.
The plan already has roiled diplomatic relations with Mexico. Leaders in American border communities are saying it will damage local economies and the environment. And immigration experts say that -- at a cost of at least $2.2 billion -- the 700-mile wall would be an expensive boondoggle.
You can do the math from this website...
link $2.2billion for 700 mile fence our whole border with Mexico is 1,952-miles