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"They'll fail us for not knowing the new protocols."
The restricted nature of Doc 8973 is due to the sensitive information it contains. The manual provides detailed guidelines on security measures, including vulnerabilities and potential threats to the aviation industry. If this information were to fall into the wrong hands, it could potentially be used to compromise aviation security. Therefore, ICAO has restricted access to the manual to ensure that it is only available to authorized personnel who have a need-to-know. aviation security manual doc 8973 restricted pdf