It actually very old news and likely an offshoot of project Echelon. Back in the day the NSA and it Canadian, UK and a few other countries counterpart got around laws about not spying on you own citizen with the Echelon project. Echelon shared the interception feeds between members but let them all deny that they are spying on their own citizen. You had UK officers manning the computers that spy on Canadian citizen on behalf of Canada and vice versa. Same goes for all members state. Off course now they just ignore the laws willy nilly.
from overview for madhi19 http://ift.tt/1o6mRUs