The below is not meant as an excuse, but as a description of how it may work. I have no actual insight into the matter. It is all hypothesis.I do not think the US and Germany have systematic spying programs on each other. Like the US-UK, there is significant cross-talk at numerous levels of government between the two nations on a myriad of topics at numerous classification levels.
Put another way, I do not think the US policy is "Spy on Germany," which I think it is for Russia, China, etc.
I think the NSA was/is listening/collecting intelligence on
everybody.
I think the German counter-espionage is very good. German has lots of practice thanks to the Cold War.
I think that US intelligence agencies have the task of figuring out how much Snowden has without revealing possibly unleaked details. It is hard to have cross-talk about details you do not wish to divulge. Telling the Germans you know that Radicals A are planning an attack on Target 1, how you did it is another (especially if it causes diplomatic issues).
I think the US intelligence operations in Germany probably have a budget closely linked to Cold War vs present day needs. When you need to spy on East German, the Soviet Union, and the rest of the Warsaw Pact activities from West Berlin, you get a big budget. I would not be surprised if a lot of the US intelligence infrastructure in Germany is linked to those out-of-date missions.
In a resource rich situation, 25,000 Euros is a drop in the bucket, especially when it likely achieves the desire goal.
I doubt the low-level operational detail that has become the scandal was briefed to the President ahead of time.
Vikarion, the US and Russia aren't supposedly friends. Germany and the US is another story. With the words of Obama who told the German audience: peace and progress "require allies who will listen to each other, learn from each other and, most of all, trust each other."
Guess he meant 'listen to each other' and 'learn from each other' not the way a German would understand 'trust each other'.
Pro-tip: President Obama is very good at telling people what they want to hear. He is also never just speaking to the audience in front of him.
Also, the statement is correct. It is a question of who needs to work more at listening, learning, and trusting the other.