Final answer:
The concern about bioterrorism is based on the potential for the threat to cause the health care system to collapse.
Step-by-step explanation:
The concern about bioterrorism in a community is primarily based on the potential for the threat to cause the health care system to collapse. Bioterrorism involves the intentional release or spread of disease agents such as viruses, bacteria, or toxins. If a bioterrorism attack were to occur, it could overwhelm the healthcare system with a sudden influx of patients and increase the demand for medical resources, potentially leading to a collapse of the system.