Video explains secret codes used by airlines, stores
A seven-minute video discusses 'secret codes' which stores and airlines use to communicate with staff members without alerting customers. 'Time Check', used in departmental stores, signifies a bomb scare while 'Code Adam' is issued for a missing child. 'Code Bravo' is used by airlines to distract passengers from something serious while '7500' means a hijacked plane, as per the video.\n