Seated in first class, four men from the Middle East—three from Saudi Arabia and one from Lebanon—had murder and martyrdom in mind. All four had checked out of the Newark airport’s Days Inn that morning and had passed through security without incident.23 The CAPPS security system selected one, Ahmed al-Haznawi, for additional screening. Following the same steps as the screeners at Logan and Dulles airports, Newark’s security staff checked his suitcase for explosives, didn’t find any, and held it off the flight until Haznawi boarded.