It's notable how you didn't notice how the new specs cite 6 ft depth and not 18 to 24 in that is common along where the wall was breached?
Originally Posted by I B Hankering
Remember when they dug El Chapo out from prison? Bought some property nearby and spent months.
I also remember various reports of tunneling under the border in the Arizona area. Road even collapsed. Successfully catapulted drugs over. Eventually they'll drone people and drugs if they haven't already.
Nothing can guarantee 100% success. It can be made more difficult...and more deadly.