Many new forms of technology were needed in order to improve safety. Since the attack, government spending on airport security has doubled. One new form of technology added was called Advanced Imaging Technology or AIT. This form of technology can detect a range of threats to security within seconds to protect both passengers and crews. The TSA (Transportation Security Administration) currently uses millimeter wave AIT to screen people for metallic and nonmetallic threats, including weapons and explosives, which could be hidden under clothes and do not need physical contact (AIT 1). There would be an image of a human body with an outlined area of where potential threats may be. The machine has also passed the national health and safety standards. If someone decides not to go through the scanner, they have to go through the secondary option which is to go through a pat down. A second change put into the system were changing the security officials. Previously they were people hired from private companies by the airlines, but now the TSA brought in their own security officials. Stricter procedures were placed, such as reporting any small form of suspicion and performing random security checks when necessary. In addition, several laws and policies were implanted after the attacks to provide more safety to the public. These new laws and policies included the FISA Amendments Act of 2008, Humanitarian Law Project v. Holder, 2010, Intelligence Reform and Terrorism Prevention Act of 2004, US Customs and Border Protection and Department of Homeland Security Policy Changes, Attorney General Guidelines for Domestic FBI Operations, 2008, FBI Domestic Investigations and Operations Guide, 2008, Military Commissions Act of 2006, Detainee Treatment Act of 2005, (Hamdi v. Rumsfeld, Rasul v. Bush, Boumediene v. Bush, Military commissions act of 2006) and torture. These new laws and policies focused on privacy, profiling, free speech, and detaining.