The official nature of the cooperation between Germany and the US in Bad Aibling is documented in a contract, written two years prior to the NSA‘s official departure, drafted under the auspices of then-Chancellery Chief of Staff Frank-Walter Steinmeier, now Germany‘s foreign minister. The „Memorandum of Agreement,“ signed on April 28, 2002, is six pages long and marked Top Secret. It is not from Snowden‘s material.