Cold War Air Raid Siren

Origin
The Cold War was a state of political and military tension after World War II between powers in the Western Bloc (the United States, its NATO allies and others) and powers in the Eastern Bloc (the Soviet Union and its allies in the Warsaw Pact).

Effect
This air raid siren, which was installed in Washington, D.C. during the 1960s, was built to alert the citizens that they were about to be attacked, but the siren never rang. When turned on, everyone that can hear it will believe they are about to be destroyed.