The thing is all the stations that I mentioned above that arn't on US soil are manned by the US National Security Agency and
RAF Menwith Hill is manned by the US 451st Intelligence Squadron as well as the NSA.
So really the US Government doesn't trust its NATO allies to spy on themselves! The NSA's intelligence gathering is supposed to be limited to foreign communications, although domestic incidents such as the NSA warrantless surveillance controversy have occurred in the US.
These activities, especially the publicly acknowledged domestic telephone tapping and call database programs, have prompted questions about the extent of the NSA's activities and concerns about threats to privacy.
NSA monitors huge volumes of records of domestic emails and Internet searches as well as bank transfers, credit-card transactions and travel and telephone records World wide and also with in the US.
