[babaloo999]

Don't know if you would classify as the same thing but we already have internal checkpoints. All major highways heading north and west out of the Rio Grande Valley have border patrol checkpoints where all traffic is routed through.
There's one in Van Horn in west Texas but it's not 24/7. There's also one on I-10 about 50 miles into New Mexico, if you're travelling west out of El Paso.

[babaloo999]

All you truck drivers know what I'm talking about, eh? There has to be at least a couple of drivers who check out FR.