Airport Security has always been a major concern for the United
             States as well as many other countries. However, September 11, 2001 forced
             the world to re-evaluate standard airport security procedures and forced
             the United States Congress to enact numerous aviation security improvements
             designed to strengthen aviation security (Aviation 2004). These
             improvements included the development of a passenger prescreening system
             and the federalization of airport screeners (Aviation 2004). Yet, despite
             these changes, the Department of Homeland Security and the Transportation
             Security Administration still face challenges to improve aviation security
             (Aviation 2004). Airport security breaches not only effect national
             security and possible loss of human life, but depending on the severity of
             the breach, may effect financial markets, both nationally and globally.
             The September 11th tragedies exposed the vulnerability of the world's
             greatest superpower, leaving the United States to face the challenge of
             recovering emotionally and physically (Recovery 2001). Already threatened
             by recession before the September 11th, the U.S. economy suffered a number
             of blows during the weeks following attacks (Recovery 2001). Although,
             many industries, especially the airline industry, suffered heavy financial
             losses during the aftermath of September 11th, most did rebound in a
             relatively short span of time (Recovery 2001). The September 11th events
             led the U.S. Senate to approve a war bonds bill, putting the Treasury
             savings bond on the market for the first time since World War II (Recovery
             2001). Wall Street, as well as other global markets went into a decline,
             with Nasdaq and Dow Jones showing sharp dips in composite indexes (Recovery
             Airport security breaches breed a myriad of concerns. When shipments
             of dangerous and hazardous substances, such as flammable liquids or
             radioactive ...