Send your nephew up to that Scottish pig farmer mate and stick one on his pork chops and film it, no point in you wasting your time with him you'd snap him in two before you could say permission lol
f**k knows but it's technology we ain't privy too at the moment tech that's been held back from the public domain I first heard years ago about these sort of tunnels wouldn't put it past them.
but seeing is believing when it comes to this sort of technology lol
Air Canada the 51st sate of American Airline .... has a ring to it mate lol
There were rumours that the tunnel already exists and it ain't the only one but who knows seeing is believing.