The NSA’s base at Menwith Hill in the U.K. supported the GCHQ in tracking phone, GSM, SMS, and high-powered cordless phone signals in the wake of the London bombings on July 7, 2005. This included putting nine U.K. cities under mass surveillance by monitoring satellite phones via “VOICESAIL.” NSA analysts also found a certain area in Pakistan with a high density of calls to the U.K. and were able to use intercepted communications from a subsequent attempted bombing to add potential terrorism-related cover terms for attacks to their database.
Aug 24, 2005
Mar 01, 2018
United Kingdom