Forged in the fires of the Bronx and Kingston, Jamaica, hip-hop became the Esperanto of youth rebellion and a generation-defining movement. In a post-civil rights era defined by deindustrialization and globalization, hip-hop crystallized a multiracial, polycultural generation's worldview, and transformed American politics and culture. But that epic story has never been told with this kind of breadth, insight, and style. Based on original interviews...