Wasn’t $700million already allocated?
You could put a nice fence (for starters) for that amount.
Patrol it carefully and you don’t need an actual brick wall.
YES! YES! YES! Definitely, need a concrete or brick wall.
30 feet high, at least 12 feet deep into the earth.
I’ve seen drawings of some of the ideas submitted. They’re beyond excellent. High tech.
Can barely wait to see the models constructed here on San Diego’s border.