Final answer:
Since 9/11, measures such as implementing civil defense and emergency preparedness measures and ensuring the resilience of critical national infrastructure have been taken to cope with potential disasters.
Step-by-step explanation:
Since the tragic events of 9/11, various measures have been taken to cope with potential natural and man-made disasters. One significant measure is the implementation of civil defense and emergency preparedness measures, which include anti-terrorism legislation. These measures aim to enhance national security and protect citizens from future terrorist attacks.
Another measure is ensuring the resilience of critical national infrastructure. This involves implementing strategies and technologies to protect key infrastructure systems, such as transportation, communication, and energy, from potential threats.
Overall, the effectiveness of these preparedness measures can be assessed by analyzing their impact on preventing and mitigating disasters. It is important to continually evaluate and improve these measures to enhance their effectiveness and ensure the safety and security of the nation.