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(4) Each Contracting Party agrees that such operators of aircraft may be required to observe the aviation security provisions referred to in paragraph (3) of this Article required by the other Contracting Party for entry into, departure from, or while within the area of that other Contracting Party. Each Contracting Party shall ensure that adequate measures are effec- tively applied within its area to protect the aircraft and to inspect passengers, crew, carry-on items, baggage, cargo and aircraft stores prior to and during boarding or loading. Each Contracting Party shall also give sympathetic consideration to any request from the other Contracting Party for reasonable special security measures to meet a particular threat.
(5) When an incident or threat of an incident of
unlawful seizure of civil aircraft or other unlawful
acts against the safety of such aircraft, their
passengers and crew, airports or air navigation facilities occurs, each Contracting Party shall assist the other Contracting Party by facilitating communica- tions and other appropriate measures intended to ter- minate rapidly and safely such incident or threat
thereof.