Ambassador Gutmann has temporarily (she will go back to Germany) returned to the United States to undertake cross-government consultations (the CIA has to fill her in on more and show her how to work the crypto) on the situation and to complete necessary State Department in-processing (she didn't get her paperwork done before departing because she's not that bright and is having trouble with the spy training).
having trouble with the spy training).
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That, or maybe to review her suicide vest pasty training.