Increased Airline Security
Following 9/11 airports and airlines have undergone major changes to increase safety when traveling. Before 9/11 airline security and screening was controlled by private companies. In response to 9/11 Transportation Security Administration, better known as TSA, was created to strengthen the safety of airports and prevent future airline hijacking. TSA brought about many changes to airline security such as being required to present an ID matching on the name on the boarding pass, or removing shoes at security check points. All the changes in security have reasons behind them, for example the removal of shoes and the 3.4 ounce limit on carry on liquids prevent both shoe, and liquid bombs from being brought onto flights. As a result of the increased security measures it has become necessary to arrive at the airport much earlier than before due to long lines at security check points.
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Aircraft Security
In addition to changes in security check points, airplanes also underwent minor changes to improve security. Bullet-proof doors on the cockpit became standard on all airplanes to prevent hijackers or intruders from being able to enter the cockpit. Some airplanes also have security cameras to allow pilots to monitor in cabin activity. Pilots are also now allowed guns, if they are trained and licensed.