"Build the wall" is not merely about enforcing border crossings. It's a political rallying call to scapegoat undocumented immigrants. He's developing a technol

"Build the wall" is not merely about enforcing border crossings. It's a political rallying call to scapegoat undocumented immigrants. He's developing a technological alternative to "full-scale border walls." He also explicitly positions it as a "defense" technology to protect citizens from threats. A substantial amount of the money to be made here is made possible by anti-immigrant hysteria.