The US just got caught.
This is like the secret of the atom bomb. Once it's out, it's out. No pretending that it doesn't exist any more. Guess what? What you put on the wire is fair game for any of scores of different intelligence agencies. No, not usually the criminal law enforcement folks, but the spy guys.
And most of the politicians in these countries don't know. In fact, for a program like this to be effective, very few people should know.
You can't put that genie back in the bottle by getting mad at the US and pulling your data out. (Not that I blame you. Might make a fine protest. It just does nothing to ensure your privacy and anonymity) In fact, you could actually be opening your data up to even more abuse. Who knows?
The world needs to decide once and for all whether to make this data completely transparent and accessible to all, or an international crime to collect. Pretending this is a USA-only problem is just another way of sticking your head in the sand.