Plausible terrorist threat scenarios against the homeland include

The correct answer encompasses a comprehensive view of potential terrorist threats to the homeland, acknowledging both international and domestic sources of extremism.

Strikes by international terrorists represent threats stemming from organized groups or individuals who operate across national borders. These groups often have significant resources, intelligence, and networks that allow them to execute complex attacks.

On the other hand, attacks by homegrown ideological extremists refer to individuals or small groups who are motivated by radical beliefs but operate largely within their own countries. These actors may be influenced by international ideologies but engage in terrorist activities locally, often fueled by grievances and ideology that resonate within their communities.

Recognizing both types of threats is crucial for national security efforts. By considering international and homegrown factors together, security agencies can better assess risks, allocate resources, and develop strategies to prevent a wide range of potential attacks. Thus, the inclusion of both scenarios reflects a nuanced understanding of the evolving landscape of terrorism, essential for effective homeland security planning and response.