Richard Fuisz's meetings with Susan Lindauer ended abruptly on September 11, 2001, the day of the September 11 attacks, due to what Fuisz described as an increasingly "seditious bent" to her discussions. The September 11 attacks were a series of four coordinated terrorist attacks by the Islamist terrorist group al-Qaeda against the United States on the morning of Tuesday, September 11, 2001.

The Montreal Protocol on Substances That Deplete the Ozone Layer took effect. While unrelated to Fuisz directly, this global environmental agreement highlights the broader context of international cooperation and regulation during the period when Fuisz was active in international business.