They may not be sub-hunters fren. I'm a civilian. These helicopters uncovered a few tunnels while building the wall. I live in Texas and it was a big deal in the local news when they found and destroyed them. One of the tunnels came up under a house in a subdivision in McAllen Texas and the tunnel had lights. fans, and a train car of sorts. I think they found another just like it in El Paso. The Germans invented GPR a long time ago and I bet the Brits have it too.
They may not be sub-hunters fren. I'm a civilian. These helicopters uncovered a few tunnels while building the wall. I live in Texas and it was a big deal in the local news when they found and destroyed them. One of the tunnels came up under a house in a subdivision in McAllen Texas and the tunnel had lights. fans, and a train car of sorts. I think they found another just like it in El Paso. The Germans invented GPR a long time ago and I bet the Brits have it too.