After the September 11 attacks in 2001, Seelye again found himself in the spotlight as an expert on Middle Eastern affairs and continued to advise think tanks and policy making groups. He also continues to be strongly criticized by writers who do not agree with his views on the Middle East, such as an "Atlantic Monthly" article Robert D. Kaplan in which he wrote of Seelye that such "Arabists and other area specialists may be emotionally involved, through marriage or friendship, with host countries – often causing them to dislike the policies that Washington orders them to execute." Seelye and over 50 former US ambassadors and government officials signed the Middle East Policy Council's letter to President George W. Bush, criticizing US policy on the Israeli–Palestinian conflict, specifically Israeli Prime Minister Ariel Sharon's unilateral Gaza withdrawal plan, announced in 2004 and enacted in 2005 (letter cited below), which followed earlier British diplomats' letter to Prime Minister Tony Blair.