Secret Codes You Aren't Meant to Know...

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Secret Codes You Aren't Meant to Know...

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Education

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Secret codes are used to communicate with staff members without alerting others to an alarming situation.
London transport system uses code 'Inspector Sands' to alert police. 'Code 7500' is used by airlines which means the plane has been hijacked.
Watch this video to know the most used secret codes.

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Secret Codes You Aren't Meant to Know...

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