Everything changed in the United States on September 11, 2001. While in the aftermath of those attacks much of the focus in what President George W. Bush called the “War on Terror” was on the Middle East, the efforts to thwart terrorism on American soil were obviously stepped up to a great degree. From the controversial USA PATRIOT Act to the creation of the Department of Homeland Security, the world became a different place for Americans.

As we witness in the new Independent Lens documentary (T)ERROR [premiering on PBS February 22; check local listings], the first film to document a covert terrorism sting as it unfolds, suspicion and paranoia about potential Islamic extremists remains high. But how aware are we of the reality about terror here at home? Find out by taking this quiz on the War on Terror in the U.S.A.