Please choose the correct ending to complete the given sentence: Food and Entertaining: [header] How to recognize signs of terrorist activities [title] Be alert to covert surveillance. [step] Terrorists gather information about a potential target when planning an attack. Acts such as monitoring or recording a security apparatus should raise a red flag.

Ending1: Red flags have been raised since the face of the israelites. [title] Look for questionable energy or emissions in the air. Ending2: If you notice someone who is not involved with a building using the camera on their phone, a camera, or binoculars, be alert. If you see that someone has been drawing diagrams, blueprints or detailed maps, be suspicious. Ending3: Police should turn to agencies with alert websites as this can attract attention and warrant further surveillance. Spreading the word of the danger quickly becomes a priority when the target is caught or vulnerable. Ending4: Privacy violations under the pretend identity act act only cover secrecy of close friends and family. [substeps] Covert surveillance typically happens at 3 pm when the target accepts a security blanket.

Answer format: ending1/ending2/ending3/ending4