Two fences in the same sector, one properly done (double layered, no breaks, etc) and one improperly done (we'll call it Obama/democrat fencing) shows that crossings plummet at the properly designed fence and hardly decrease at the Obama fencing.
I can't view the video right now - do they take into account the fact that since the "good" wall is only in one area people can (and presumably would) just go around to another area? THat seems like a difficult problem to work around in this kind of study. Certainly when the "good" wall is the only option that would change the approach.
I do know (second-hand from a fairly reliable source) that there are a lot of holes in areas where there are walls. Some of these are tunnels, some just holes. They spring up pretty quickly.
I'm not saying that a wall is a bad idea, but they'll still come through if they feel like it. We'll stop some people, but not the ones we're most concerned about. The ones we stop will be the indivisuals trying to cross on their own, and those are also the ones that (in my personal experience) tend to work hard to contribute once here and would make great citizens if given the chance.
Smuggling of drugs or people wouldn't change much, from what I've seen.
I don't like the "virtual" fence better, though I won't rule out all forms of a virtual fence. This particular attempt seems to be a disaster. I think the problem with most border efforts is that we do not have the manpower to properly patrol that much real estate. In that sense some level of electronic surveilance may be better than physical fences since that helps us to properly distribute our security.
But really, I just don't ever think we'll have true border security.
