Inside the terminal, it is a common sight of First Worlds airports seeing armed guards. The behavioral specialists and canine units will identify individuals who are acting suspiciously. The CCTV (Closed-circuit Television) continuously record what is going on throughout the airport, facilitating fast response to anything that appears dangerous or unusual. Background checks are sometimes mandatory and always encourage, all employees were given identification cards that are difficult to replicate; biometric procedures to prevent impersonation are close to wide availability. The workforce beyond the security checkpoint must go through the screening procedures as passengers. Even the flight crews are subjected to these measures. All food and gift items that go beyond the security checkpoints often get scrutiny comparable to that of carry-on luggage.