> You can consider it immoral that the NSA monitored the communications of Angela Merkel or the italian ministry of defense, but that isn't whistle-blowing. It's the reason that the NSA exists.

It is definitely whisteblowing to reveal that a country has been secretely wiretapping the communications of its (supposed) allies – one can blow the whistle on things which are "legal" especially when their legality has been surreptitiously pushed through the back door.