If they were really serious about a wall, they'd build an actual wall of solid concrete with reinforcing steel laid throughout, with a height of 200 feet, an underground penetration of at least 55 feet, and a depth of at least 70 feet, and run it literally coast to coast. Wire it up, electrify the middle levels (for anyone trying to climb it), grease the uppermost levels (so people slide back down) and then have armed US military drive it 24x7 with jeeps. Shoot anyone who approaches the wall illegally. Silly conservatives, unwilling to do anything full-assed, rather than half-assed.

@1,

You're assuming that conservatives want to keep illegal immigrants out. That's bad for business, and not something they'll ever seriously pursue. The border fence is about shutting their constituents up.