1 drug mules come via many ways. Yes many of drugs come in by tractor trailer after "NAFTA" was signed (see netflix docu series "Narcos" they do a good job explaining it, plus its a great show)
2, True but many mules swallow the drugs in condoms and crap them out later, a slated fence will keep the mule from coming over at least.
3.Make it higher and have cameras. why should we make it easy for them?
4, Tunnels are hard to build, yes they still do it, but it makes the work for them 1000xs harder to get drugs over. we can put colums of rebar under the wall like a fence in the dirt kinda. We can also put sensors similar to seismic sensors that pickup larger disturbances like tunnel digging. They have come down in price but this was why the wall is 5 bil not 4 bil. Was listening to a NPR program on it, pros/cons etc, Bottom line is, why should we make it easy on them? I live in Delco Pa outside philly, drug OD is now the number 1 killer of all ppl in my area under the age of 60.
5 Yes Crack is made here but is made from Coke, but Coke plant is only found in south america . Plus I wanted to use a funny meme and as far as I know, Chappel never did a coke head bob skit.choices were limited