[C210N]

but there's been a dramatic reduction in attacks on our Border Patrol agents where they can see through the wall, because nobody's throwing anything over the top at them...

If you can see thru the wall, so can they. And, then they can aim and target BP.

A tall solid wall, they cannot.

[Helicondelta]

[Quality_Not_Quantity]

If you can see thru the wall, so can they. And, then they can aim and target BP.

Yes, and so can the Border Patrol. That door swings both ways.

[Cementjungle]

If you can see thru the wall, so can they. And, then they can aim and target BP.

Yea, but if you have a long wall with no holes in it the wind will push on it too much, making the Earth rotate faster than it should... which would create more climate change (tm).

/sarc

[McGavin999]

It’s their lives on the line, not yours. Give them what they want

[mosaicwolf]

All obstacles to be effective MUST be covered by observation or fire. (Read: Fire meaning small arms, mines, artillery, etc.)

[ksm1]

The see through part is deceiving. Ask the troops who ran into simple barbed wire in World War 1. If we set up a simple, triple standard concertina fence on the border—that thing can chew up tank treads, much less a pickup truck for drug runners or human traffickers. We could get the Corps of Engineers to set that up on the cheap, and then we can always reinforce it later. But we’d at least have SOMETHING.

But alas, I’m not in charge :(

[Monorprise]

If we can’t see thou the wall on the other side we can’t alert border patrol or the army to incoming threats such as tunnels and tanks.