Chuck D's lessons on fighting the power

Chuck shares his thoughts about activism, America's love-hate relationship with hip-hop, Eminem's big statement and if "mumble rap" has a place in the genre.

In his new book, "This Day in Rap and Hip-Hop History," Chuck D chronicles hip-hop's most iconic moments and the most influential songs since the genre's start in the early '70s."I wanted to document the history of hip-hop because a lot of urban myth has run rampant about it," Chuck D told CNN. "A lot of people that say that they love music or they say they love the art form of hip-hop or rap music seem to be lost on the facts of it, and I wanted to put together something that was kind of aca...