Security services have changed in multiple ways since the 9/11 terrorists attacks. In my opinion some of the changes have been for the better and some of the changes have been for the worse. Since the changes in security have been made there has not been a successful terrorist attack on the scale of 9/11 in the United States. There have been several smaller attacks such as the Boston Marathon bombing and other attacks throughout the country but nothing at the level of 9/11 yet.
Airport security is a security area that has changed drastically since 9/11. The TSA was formed as a result of the Aviation and Transportation Security Act which ultimately formed the TSA. Whether