(RNS) — The Stones put it this way: It’s only rock ’n’ roll, but I like it. And I do — the Beatles, the Stones, David Bowie. But there are some things I don’t like about it. Author and musician Daniel Rachel has written a new, disturbing and quite overdue book, “This Ain’t Rock ’n’ Roll: Pop Music, the Swastika and the Third Reich.” And I interviewed him about it for my podcast.  The book documents something that has been hiding in plain sight for more than 60 years. As Rachel writes: For over seventy-five years, musicians have been drawn to the language and provocative imagery of Nazism, fascinated by its power, menace and underlying sexuality. They have flirted with the theatrical spectacle of the Third Reich, displayed the swastika, flaunted memorabilia, worn Nazi uniforms and marveled at the grandiose rallies of 1930s Germany. Decades ago, Woody Guthrie had a guitar with the words inscribed on it: “This machine kills fascists.” We never thought that future rock stars might have guitars that could say they …