As it turns out, I’m a small-plane pilot. So yes, some planes can get across the border. But most are going to turn up on radar and be interdicted. There’s no way it can serve as an alternative to thousands of carriers coming on foot across the border.
Yep. From the documentaries I’ve watched the mules will carry large mini-fridge sized bundles of pot, etc. across. No way to carry that by plane without getting caught.