During the attack of 9/11, more than one airplane were hijacked and this led to the establishment of the Transportation Security Administration or TSA which takes care of the total security of the airport. With the increasing pace of globalization, mobility of the people has become easier and at the same time, the attack of 9/11 showed even the terrorists are being able to be move freely across the countries by using various vehicles. They were even being able to hijack planes. It showed the necessity of increasing the security guidelines in the transportation sector.