“The epithet raghead–also used by conservative Ann Coulter in a 2006 CPAC speech—has become a generic slur .. originally employed, in the early 20th century, against turban-wearing Indian immigrants, the vast majority of whom were Sikh men.”
http://religion.blogs.cnn.com/2010/06/16/ragheads-and-republicans-is-sikhism-a-sickness/
I was using AND WILL use the term since 1979...PRE-DATES ANY conservative.