Which is NOT an early indicator of a potential insider threat?

A reasonable disagreement with a US Government policy is not considered an early indicator of a potential insider threat because it reflects a normal, healthy expression of differing opinions and viewpoints. Critical discussions and debates about policies are a regular aspect of workplace dynamics and do not inherently indicate malicious intent or a predisposition toward harmful actions.

In contrast, the other options represent concerning behaviors that can signify an insider threat. Abnormal mood swings, depression, and suicidal remarks can indicate psychological distress that may lead to dangerous situations. The presence of unauthorized weapons suggests an immediate risk to safety and security, reflecting an intent to harm. Likewise, aggression or threats toward co-workers can indicate a volatile state that could escalate into violence. Thus, while having differing views on policy is part of a functioning democracy and workplace discourse, the other behaviors are direct warning signs that could suggest a potential threat.