Governments and corporations that have access to private and/or protected information have dealt with this problem for decades. I would be surprised had Google

Governments and corporations that have access to private and/or protected information have dealt with this problem for decades. I would be surprised had Google not years ago established policies to deal with misuse or improper/illegal access to information. Information systems are very open to snooping by programmers and tech staff, however. Ultimately some (usually small) group of employees must be trusted more (but never completely) b/c they have access to the network, programming or databases. Audit trails, logs, encryption and yes, "internal affairs departments" all play a role in maintaining a secure system so that even the god-like programmers must be careful not to overreach. I've never heard of a reference to "Google IAD" but I certainly hope one exists.