• Creation of Department of Homeland Security • Passage of the USA PATRIOT Act • Increased surveillance at U.S. airports end of the Cold War and dissolution of the Soviet Union. resumption of sovereignty by the People's Republic of China over Hong Kong. The actions listed above were taken in response to the September 11, 2001 attacks on the Pentagon and World Trade Center. financial crisis of 2008ñ2009 and subsequent world recession.

• Creation of Department of Homeland Security • Passage of the USA PATRIOT Act • Increased surveillance at U.S. airports end of the Cold War and dissolution of the Soviet Union. resumption of sovereignty by the People's Republic of China over Hong Kong. The actions listed above were taken in response to the September 11, 2001 attacks on the Pentagon and World Trade Center. financial crisis of 2008ñ2009 and subsequent world recession.