Answer :
Final answer:
The question addresses indicators of a potential insider threat in Army Anti-Terrorism Level 1 training, where participation in team-building activities is not considered an indicator, unlike negative behaviors such as poor work performance, substance abuse, and ignoring security protocols.
Explanation:
In Army Anti-Terrorism Level 1 training, an early indicator of a potential insider threat does not include participation in team-building activities. Early indicators typically involve negative behaviors such as a decrease in work performance, increased use of alcohol or drugs, and disregard for security protocols. Positive involvement in team-building efforts is usually encouraged and is not seen as threatening behavior; it can even help strengthen group cohesion and operational security.