@Walter Hinteler,
I say bravo to Germany!
Not that I think they will be able to arrest, convict and jail anyone, but they are doing the right thing from a moral standpoint. And on a political plane, the more trouble for Washington, the better. Expose their shame, educate the people (including the Americans), exhort a political price -- that CAN be done by a prosecution of this kind...
And who knows? Maybe another US spook with a moral fiber left in his soul will see the light and start talking to the prosecutor... Miracles happen.
Bottom line: the NSA and Obama deserve a fair trial. I hope you guys give it to them...