During a crucial private meeting between President Ronald Reagan and President François Mitterrand, the issue of Soviet espionage was brought to the forefront. Mitterrand unveiled the Farewell Dossier, a meticulously compiled collection of intelligence documents created by the French intelligence agency, which underscored the depth of Soviet efforts to infiltrate and acquire American technological advancements. The revelations included evidence of extensive spying on various sectors, particularly highlighting how the Soviet Union had been systematically pilfering data on technology that was critical to U.S. military and commercial interests.

This meeting was significant for several reasons. Firstly, it illustrated a deepening of U.S.-French relations, as both leaders recognized the need for collaboration in intelligence sharing amidst the growing Cold War tensions. The Farewell Dossier not only contained detailed accounts of espionage tactics employed by the Soviets but also evidence of how these activities undermined Western technological superiority. Mitterrand's decision to share this sensitive information signified France's commitment to combating Soviet expansionism, reinforcing a united front against common adversaries.

The outcome of this meeting had profound implications. It spurred discussions about enhancing security protocols and intelligence-sharing arrangements between allied nations. The Farewell Dossier served as an urgent call to bolster defenses against espionage, leading to significant changes in U.S. technological export policies and increased vigilance regarding foreign acquisitions of sensitive information. This crucial dialogue exemplified the intertwining of political strategy and technological warfare during the Cold War era.