Noting that the situation that gave rise to NSAM 41 had improved, Read informed Bundy that intelligence reporting would continue but he wanted permission to stop work responsive to the NSAM. There had been “no indication of any attempts by the French to enlist German or Italian cooperation in the Pierrrelatte project.”

In this report, INR noted that the French had walked back statements by Charles de Gaulle in January 1963 that he would not object to the development of a West German nuclear capability. This report also includes notes on why the French opposed an MLF, claiming Washington might be "whetting the German appetite" for a national nuclear capability.

In this telegram, President Kennedy encourages Prime Minister Macmillan to take a positive interest in the MLF project, in which the British had little interest because of financial reasons and their doubts about the German role. Kennedy also expressed concern about the future of German nuclear efforts.

In this document, Assistant Secretary to European Affairs, William Tyler, discussed the State Department's request to the US Embassy to ask the West German government whether there was an arrangement in the French-German Friendship Treaty that included a secret annex on military and nuclear cooperation.

This AEC report looked at the Pierrelatte plant’s prospective capabilities, possible West German motives for seeking an independent supply of enriched uranium (possibly in cooperation with the French), the “adverse” implications of a French-German project, and policy alternatives available to Washington. If the West Germans were determined to contribute to the French enrichment project, the AEC saw serious risks including the “the prospects of a Franco-German military alliance that could constitute a European third force capable of dominating Western Europe."

This report from the American embassy in Bon to the Department of State details the embassy's impressions that cooperation between France and Germany in the atomic energy field was underway.

Following a similar telegram from 25 July 1962, this telegram noted French denials of any such discussion on French-German nuclear cooperation, but the Bonn Embassy agreed with the U.S. Embassy in France that the subject was “reserved for possible consideration in future.”

In this telegram, Embassy analysts in West Germany found that “at present there does not exist deliberate intention in Germany to embark on nuclear weapons program either alone or with French.”

In September 1962, British Defence Minister Peter Thorneycroft traveled to Washington for discussion on defense cooperation. During a flight with President Kennedy and Secretary of Defense McNamara, they discussed the French nuclear program and the possibility of French-German nuclear cooperation.

Conversation between John Foster Dulles and Chancellor Adenauer at a NATO meeting. Dulles learned from Adenauer that the French-West German project on nuclear weapons research would soon come to include Italy, to which Dulles expressed reservations and suggested a broader arrangement including the U.S. and the U.K.