Earlier quoted context omitted.
Why is relying exclusively on information that's been filtered through a foreign government, possibly with its own agenda, a sensible way to gather intelligence?
When they are an ally. Its how the US expects it's allies to behave towards it. Or do foreigners now have every right to assume the US never, ever plays straight and equally massive surveillance budgets should now be turned towards the US by its own allies? Honest broker or not? See, its seems to me this is the core of the arrogance accusation the US gets. The US holds its had high as a champion of democracy, truth,…
France spys on the US: http://www.france24.com/en/20131024-nsa-france-spying-squarc...
Israel spies on the us: https://en.wikipedia.org/wiki/Jonathan_Pollard
Germany undoubtedly keeps tabs on us, too.