Der Spiegel releases hundreds of pages of documents along with a two-part story. Part one details a variety of offensive NSA operations that allow the agency to infiltrate and exploit networks around the world. Der Spiegel says "the US government is currently undertaking a massive effort to digitally arm itself for network warfare." Part two details how the NSA harnesses the activities of other spies: "The practice of letting other intelligence services do the dirty work and then tapping their results is so successful that the NSA even has a name for it: 'Fourth Party Collection.'"