I really don't see how.
I kinda doubt the NSA give that information to US officials negotiating trade agreement with Europe, but let's say that they do, how would reading emails between Merkel and heir foreign minister helps the US get better results?
Like technically, how would that happen?
Because I can show you how this cloak and dagger hurt American interests around the world (and I'm sure you can to too).
Trade examples wasn't the best but whose to say they don't? There are also possibilities the Europeans in this example don't share everything in regards to cybercrime (say a the German's knew a criminal was in their country), corporate espionage, or even terrorism. The NSA's mission is to give the US information to make decisions. I don't see this going above and beyond.
NSA said:
SIGINT involves collecting foreign intelligence from communications and information systems and providing it to customers across the U.S. Government, such as senior civilian and military officials. They then use the information to help protect our troops, support our allies, fight terrorism, combat international crime and narcotics, support diplomatic negotiations, and advance many other important national objectives.
And I'm sure you could show examples of this stuff hurting US interests but also helping it. The debate seems to be centered around what people believe are US interests.
You really see no value in being honest with your friends and allies?
Not to mention that if you screw countries too bad they're going to walk out of the bad treaties they signed with you (and not to mention they're going to be significantly less likely to get into new negotiations with you).
None of this goes against having a leg up. I can see the goal of a fair
outcome desirable but having an information advantage? How on earth could that be a bad thing (obviously this is under the assumption the other party doesn't know you have this information, hence it being secret)
And its not like having this information only gives the US a better position, the EU could be withholding things that would make the process more 'fair'
This is why Snowden has moved beyond just leaking things in the public's interest, this isn't whistle-blowing because no "wrongdoing" has been found. This is snowden injecting his personal opinions into his leaks, his desire to change policy. He's even said it himself, some of these leaks aren't for the US public to make decisions based off of but for people in other countries to make decisions around. That's moved beyond whistle blowing and why charges under the espionage act are fair IMO. He's intentionally trying to cripple the US intel community from doing its job where he doesn't agree.