Brandon Darby @brandondarby
Most, if not all US-Mexico border tunnels, are discovered because of human sources, not tech. A robust human source program is the primary solution in terms of cross border tunnels. — PolitiTweet.org
🇺🇸WhatsTheMatter🇺🇸 @WhatsTh61068280
@brandondarby @BreitbartTexas seems like we could use some technology (sonar) to quickly discover these and afterwa… https://t.co/uJC7U2h7Ul