The authors examined relationships among authoritarianism, personal need for closure or structure, perceived threat, and post-9/11 attitudes and beliefs. Participants were 159 undergraduate students in the Southeastern United States. The authors collected data 1 week before the U.S.-led invasion of Iraq in March 2003. Correlation and regression analyses revealed that right-wing authoritarianism and social dominance orientation were significant predictors of support for restricting human rights during the U.S.-led War on Terror, support for U.S. President George W. Bush, and support for U.S. military involvement in Iraq. Right-wing authoritarianism and perceived threat emerged as the strongest predictors of the belief that Saddam Hussein supported terrorism.