We Call a Top NSA Whistleblower ... And Get the REAL SCOOP on Spying | Zero Hedge
At least two foreign companies play key roles in processing the information.
Specifically, an Israeli company called Narus processes all of the information tapped by AT &T (AT & T taps, and gives to the NSA, copies of all phone calls it processes), and an Israeli company called Verint processes information tapped by Verizon (Verizon also taps, and gives to the NSA, all of its calls).