i have no indication that the state department has clued into this. but my hypothesis on what's going on is that snowden (and probably a few people involved with wikileaks) is the obvious spy connected to that clearly existing german intelligence network.
i think that what's happening here is a controlled leak by the germans (without american knowledge or approval) to create a crisis with the goal of reducing american influence in germany, and western continental europe generally.
which answers the question as to why they're spying in the first place.