Not sure what Joan had in mind appropos of her statement about introducing folk music in the U.S. but I'll take a guess. She wanted to see the popularity of "folk music" as defined by the music business during the "folkscare" to be revived from it's putative moribund state.

Joan's interest has been as a popularizer or interpreter of folk music which along with the KT and Weavers has been salubrious to counteract the decaying values of the pop music scene.

Frank