We‘ve already written a few articles about the confirmation that AT&T is going above and beyond what‘s required by the law to be a „valued partner“ of the NSA in helping with its surveillance campaign. While it‘s long been known that AT&T was giving fairly direct access to its backbone (thank you Mark Klein!), the latest released documents provide much more detail — including that AT&T often does the initial „sifting“ before forwarding content it finds to the NSA.