Decades ago....that's how long this has been going on......a friend was staying in a Texas hotel near the border. A group in a room next to him was having a loud party and when he complained, he was threatened, so he went to the manager who did nothing. So he called the police. It was discovered that the hotel was full of illegals and that there was a tunnel dug that crossed the border. My friend spent the next year as a protected witness.