When retiring from the Defense Intelligence Agency in January 1989, Perroots wrote a memorandum about the crisis to the PFIAB. In 1990 the board released a report commending Perroots for his actions and confirming the hazards of the exercise. After a 12-year legal battle, the National Security Archive succeeded in having the report declassified under the Freedom of Information Act request in 2015. In 2017, the National Security Archive additionally requested the Perroots memorandum from the DIA but the organization claimed that the letter was lost, leading to a 2019 lawsuit. However, in February 2021 the Historian's Office of the U.S. State Department declassified and released the document as part of its "Foreign Relations of the United States" collection. The document confirmed for the first time that the Soviet military loaded nuclear warheads onto bombers and indicated that it had gotten closer to nuclear war than previously thought, with Perroots claiming that "a precautionary generation of forces" by NATO could have instigated a nuclear conflict.