All it suggests is that the UK is happy to curry favour with the US government and doesn't give a hoot about the perceived rights of American citizens. Harsh, but true.
Their own citizens are an entirely different ballpark, as you might say.
I don't know, i think the mentality here is that the government is spying for you, not at you. Is it different in the us? And is that because all revelations revolve around the fact that citizens are being spied on?