Editor’s note: “Behind the News” is the product of Sun staff assisted by the Sun’s AI lab, which includes a variety of tools such as Anthropic’s Claude, Perplexity AI, Google Gemini and ChatGPT.

Every year, Halloween sparks the sale of $3.9 BILLION on candy in the United States. But that's not the only impressive statistic related to trick-or-treating. Several years after World War II, a ...