An airline passenger 's uncontrolled anger is usually expressed in aggressive or violent behavior in the passenger compartment , but air rage can have serious implications , especially if the offender decides to interfere with the aircraft 's navigation or flight controls . Generally , such passengers are not at risk of committing terrorist acts , but since the September 11 attacks , such incidents have been taken more seriously due to increased awareness of terrorism
September 11 attacks
September 11 attacks
Air rage