Final answer:
Appropriate physical-security measures must be taken to minimize the loss of national security, which encompasses a broad range of concerns and involves conventional and non-state actors. Policies and measures taken to ensure national security include using diplomacy, maintaining effective armed forces, and marshalling economic power.
Step-by-step explanation:
The appropriate physical-security measures must be taken to minimize the loss of national security.
National security now encompasses a broad range of concerns including economic security, energy security, and environmental security, in addition to a strong military. Security threats involve not only conventional foes, but also non-state actors, such as violent non-state actors, narcotic cartels, multinational corporations, and non-governmental organizations. Policies and measures taken to ensure national security include using diplomacy to rally allies, maintaining effective armed forces, and marshalling economic power to facilitate cooperation.