The Observer published a story reporting that various European countries share personal data with the NSA, then removed it after concluding that the source was not dependable.

I had a political note pointing to that story, which I removed after the story disappeared. Until seeing this, I didn't know until now why it had been deleted.

If the report was based on documents posted by the NSA, I think that is sufficient basis to say that the NSA claims that other countries cooperate with it in the reported ways, and never the nondependable intermediate source.