To promote malingering and desertion among German soldiers during World War II, the British Political Warfare Executive and Special Operations Executive produced innocuously titled German-language booklets, among them Exercise Protocol for War Marines, into which they inserted information on how to feign illness and escape service. The British then circulated such propaganda using various special-ops agents and balloon drops across Europe.

On October 30, 1938, a CBS radio announcer presented the 8 p.m. broadcast: “Orson Welles and the Mercury Theatre on the Air in The War of the Worlds by H.G. Wells.” After the 23-year-old Welles read an ominous introduction and the “music of Ramon Raquello and his orchestra” played, bulletins followed with reports of Martians crash-landing in New Jersey. Many listeners thought that the Welles-Wells adaptation was news: some people crowded highways trying to flee from aliens; others pleaded with police for gas masks. Welles said at the broadcast’s end that it was only a “holiday offering” in anticipation of Halloween.