What should be reported to the JTTF according to TSC indicators?

Reporting observable actions to the Joint Terrorism Task Force (JTTF) according to Terrorist Screening Center (TSC) indicators is crucial as these actions can provide tangible evidence of potential threats. Observable actions may include behaviors such as surveillance of potential targets, unusual purchase of materials associated with making explosives, or other suspicious activities that could indicate planning or intent to commit a terrorist act. These kinds of behaviors are quantifiable and can be assessed in the field by law enforcement officers, making them significant for maintaining public safety and enabling timely intervention.

In contrast, the other options—like increased appetite, sleep disturbances, and increased hydration—tend to reflect personal health issues rather than definitive indicators of criminal behavior or intent related to terrorism. While they may signify stress or emotional upheaval, they do not directly relate to observable actions that can indicate impending dangerous activities. Hence, it is the observable actions that warrant immediate reporting to the JTTF for appropriate assessment and response.