Actually, I was talking with my friends about racism in music, because we wanted to avoid supporting any racist bands. After they said there were very few mainstream bands who get away with it, I brought up this example. Several of my friends were shocked at this "mainstream racism" but one, who was laughing so hard he was crying, pointed out the real lyrics. I've since resumed buying AC/DC albums and have amassed quite a collection. Of course, the band has no ties to racism in their real lyrics.