In fact, if you're able to detect the tunnel being dug, whatever device you are using, you can get a lot of money for that device from the Israeli military, who is trying to detect tunnels from Hamas, and from the US Customs and Border patrol that try and detect drug tunnels.
Infatti, se sarete in grado di individuare il tunnel che viene scavato, qualunque strumento usiate, potreste ricavarne parecchi soldi dai militari Israeliani impegnati a individuare i tunnel di Hamas, e dagli agenti di confine americani  che cercano i tunnel della droga.