How the Aviation has changed after 9/11

The purpose of this report is to evaluate the current state of the airline and airport security and how the aviation security has been changed since 9/11; also few attacks have been made even after 9/11, so it is beneficial to detect the causes and the links between these attacks and the changes following these incidents.
This is an unfortunate fact that the 9/11 was a sudden shock for aviation industry and the poor security system was detected as the main reason of that incident. Many questions were raised to criticize the airline and airport security, the main question was how the terrorists can successfully pass through the security with weapon or explosive and get on the board. The answers to those questions waked up the aviation industry and caused the industry to implement fundamental amendments to the security system. Those changes were mainly affected the airport security which it is known as the first step for terrorists. In the following paragraph I will analyse the changes that have been made in aviation security after 9/11.
However the whole international aviation industry has been affected by the 9/11, but most of the changes started from the USA because it is known as the first target for terrorists, so in this report I mentioned all the changes consist of internationally or just USA. Pre-9/11 a private company was responsible for the airport security in the USA, as the first action this responsibility has been assigned into federal hands and the new department was formed to conduct the airport security which is named Transportation Security Administration. The purpose of founded the new organization was to plan a well organised programme to increase the safety and reduce the possibility of being attacked by the terrorists. In order to increase the safety the TSA has planned to do the security in the strict way. The first priority was set for all USA airports to screen 100% of checked baggage for explosives and any kinds of weapons. The technology which had been used before 9/11 was belonging to the 1970s, as a result of that the new screening system was introduced a new technology with advanced imaging equipment to the aviation industry. These new screening equipments machines use either backscatter X-ray or millimetre-wave technology to provide a graphic image of a passenger's body beneath clothing which can detect both metallic and non-metallic threats, including weapons and explosives. As a result of that passengers have been subjected to much more strong screening procedures. Due to the passengers’ complain about the privacy issues, the TSA planned to install the TSA plans to install new software on the millimetre-wave AIT machines, which it says will "auto-detect items that could pose a potential threat using a generic outline of a person for all passengers".

TSA has decided to do prevention rather than cure, so as the next step they provide a list of people which are suspected of having terrorist links and stop them at the first gate. The latter culminated in the Secure Flight programme, which the TSA says now "conducts terrorist watch list matching of passengers on 100% of domestic and international airlines for flights within, inbound and outbound from the United States".

Before the 9/11 the airport security was not taken seriously and constant turnover in the workplace coupled with poor training due to unattractive wages and benefits which result in hiring of inexperienced and unskilled personnel. Now the selection, recruitment and the training programme is conducted more efficiently and it has became an almost a professional career with a better trained staff. As a part of recruitment process, all the officers and workers within the industry must undergo background checks and make sure that there is no links between them and terrorists.

The further action also has been taken to secure the aircraft. All the airliners are now equipped with a