What should NOT appear on an employee's identification card at a defense contractor?

An employee's identification card at a defense contractor should not display "Top secret or secret" because it can lead to security risks and potential breaches of classified information. These designations are meant for specific documents and information that require controlled access and protection. Including such terms on an ID card could inadvertently grant or suggest unauthorized access to sensitive information or create confusion concerning the employee's security clearance and permissions.

In contrast, distinctive color coding can serve a useful purpose by visually indicating different levels of clearance or employee status within the organization. The term "Confidential" is sometimes used in certain contexts, but it must be handled with care to avoid misinterpretation about the individual's access to classified information. Both A and B can have legitimate uses in identifying employees and their respective roles within the security structure, while ensuring that sensitive labels like "Top secret" or "secret" are reserved for appropriate documentation, rather than displayed on identification cards.