[John Jorsett]

It isn't just people. The Southern border is a major corridor for drug smuggling. And despite the impression the author is trying to give, there's still a flood tide of people streaming in. The smugglers are organized and efficient, and exploit any weakness. They're even aided by the Mexican Army, who do convoy duty and use military assets to intercept or jam Border Patrol communications, and detect where the BP is operating.

[dr_who_2]

The Southern border is a major corridor for drug smuggling.

No shit, and we all know how well the drug war has been going after 30 years or so.