Huh, I once visited a military base where people on the trip wanted to be photographed with a tank. The soldiers said it was OK, as long as somebody obscured the tank's serial number by standing in front of it. I wonder if their training in this respect was inspired by this history!
(But if so, why not print the serial numbers inside the tank, not outside? Or maybe encrypt or HMAC them?)
(But if so, why not print the serial numbers inside the tank, not outside? Or maybe encrypt or HMAC them?)