It's actually better then piranas, it's more like frogs that make a loud noise when someone trys to swim past the moat. If Google's area is not supposed to hav

It's actually better then piranas, it's more like frogs that make a loud noise when someone trys to swim past the moat. If Google's area is not supposed to have lights and lights go on there that's suspicious. Google could have light sensors on/near the servers along with surveillance cams and hell let's throw in a bullhorn for good measure... "Step away from the server Mr. Ballmer!" "Drat, foiled again! Meddling teenagers!" Bullhorn aside, if you have 100K servers that might actually be an efficient way to monitor security for them.