Point to TSA locks and the New York City master keys. Both systems are similar enough to encryption backdoors, and both systems have already been compromised.

Point to TSA locks and the New York City master keys. Both systems are similar enough to encryption backdoors, and both systems have already been compromised. NYC: http://daringfireball.net/linked/2016/03/12/new-york-1620 http://daringfireball.net/linked/2016/03/12/new-york-1620 TSA: http://www.engadget.com/2015/09/11/tsa-master-baggage-keys-3d-print/ http://www.engadget.com/2015/09/11/tsa-master-baggage-keys-3...