What is the role of a white person in the struggle of black people fighting injustice? That’s the question posed by Ben Haggerty, better known as Macklemore, as he puzzles out his own role as a white artist in love with hip-hop on a new song called “White Privilege II.” Macklemore & Ryan Lewis released the song as a free download overnight via a website that also offers links to “supporting black led organizations,” and already, conversation and controversy have begun.