9/11 Vigilantes

On September 11, 2021, Al-Queda terrorists hijacked a number of airliners, two of which destroyed the Twin Towers building in New York City and one of which crashed into the Pentagon. Shocked Americans began seeing terrorists everywhere they looked, most of which turned out to be imagined. The FBI was able to assign agents to check out reports of terrorists in urban areas, but there weren't enough agents to look into the reports that came from rural America. Necessarily, the slack was taken...