The article text supplied for this piece could not be retrieved beyond its title and website navigation menu ("Music, Film, Travel, Art, News, Shop, Mailing List"), so no actual article content on the claimed subject is available to summarise. The headline suggests a feature on how the 1963 protest song "Universal Soldier" exposed a CIA-related secret, but the substantive details, quotes and context that would normally support such a claim are absent from the provided text.

As a result, no factual details, dates, names or figures from the article can be reliably reported. A proper summary would require the full body text of the piece to be fetched from the source URL.