| http://www.w3.org/ns/prov#value | - Passenger control system during a plane flying, adapted to keep passengers under check so as to prevent and in case avoid any action including hijackings, the plane comprising a plane passenger compartment with plane seats (15), wherein the control system includes a plurality of first and second interactive communicating units (9, 10) adapted to communicate reciprocally, each first unit (9) being
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