“Panoptican” (https://en.wikipedia.org/wiki/Panopticon) concepts reduced the need for expensive ‘guards’... the money to monitor see through fences would be much more costly in the long run.
Build a Wall with a path on top wide enough for jazzed up golf carts to travel between ‘lookouts’... Illegals approaching WALL won’t know if any given ‘lookout’ is manned or not.
Later when technology catches up - monitor all ‘lookouts’ with AI ‘Ring’ type systems. It’ll save a bundle over salaries... Go long... our country’s life is a marathon - not a sprint.
(https://ring.com/videodoorbells?medium=ppc1&gclid=CIuCnfuY1NMCFdQ6gQodej4JDw)
Cool! Thanks.