Final answer:
The three levels of terrorist threat are minimal, moderate, and severe, which help in preparing and responding to potential terrorist activities by organizations such as al-Qaeda and ISIS.
Step-by-step explanation:
The three different levels of terrorist threat are typically considered minimal, moderate, and severe. This classification helps in assessing the risk and potential impact of terrorist activities. The level of threat escalates from minimal, suggesting a lower likelihood or potential impact of a terrorist act, to moderate, indicating an increased chance or impact, reaching severe, which represents a high likelihood or significant detrimental effect due to terrorist activities. Terrorist threats pose challenges to national and international security, and the assessment of these levels aids in the allocation of resources and implementation of appropriate security measures.
Terrorist organizations like al-Qaeda and ISIS utilize different tactics to perpetrate acts of terrorism, aiming to instill fear and influence governmental or public opinion. With globalization and advances in technology, terrorist tactics have adapted and now operate on a global scale with the potential to affect various fronts. This evolution in terrorism underlines the importance of accurately assessing the levels of threat to implement strategies for prevention, response, and mitigation.