Homeland security is the frontline of defense for a country. In the efforts to maintain a secure nation, citizens often encounter an on-going tradeoff between freedom and security. Nations rely on vital security personnel and equipment to help ensure a high quality of life and the freedoms enjoyed every day. With growing and evolving threats to security organizations must review their vulnerabilities, while limiting disruption and to maintain the integrity of their operations. Today the role of security is shared between governments and their people in efforts to protect critical infrastructures from physical attack.