You're both right, its a collaboration between the two: >For the MUSCULAR project, the GCHQ directs all intake into a “buffer” that can hold three to five days

You're both right, its a collaboration between the two: >For the MUSCULAR project, the GCHQ directs all intake into a “buffer” that can hold three to five days of traffic before recycling storage space. From the buffer, custom-built NSA tools unpack and decode the special data formats that the two companies use inside their clouds. Then the data are sent through a series of filters to “select” information the NSA wants and “defeat” what it does not. http://www.washingtonpost.com/world/national-security/nsa-infiltrates-links-to-yahoo-google-data-centers-worldwide-snowden-documents-say/2013/10/30/e51d661e-4166-11e3-8b74-d89d714ca4dd_story.html http://www.washingtonpost.com/world/national-security/nsa-in...