Eyes everywhere

"Altogether, these bases can snoop on the entire world, friend as well as foe. The leaked documents do not talk about "Waihopai". They use the station's secret Five Eyes code name Ironsand ("IS"). It's not clear why Waihopai is Ironsand. An NSA map shows it is one of a global network of oddly-named satellite interception stations. These stations are the eyes of the Five Eyes alliance."