I adore the second half of this song. I love the way they layered all the different parts. I had no idea it was inspired by Henrietta Lacks - I think I like it even more now. (Into science and/or ethics? Read "The Immortal Life of Henrietta Lacks.")
"This song is about Henrietta Lacks, a poor black woman whose cancer cells became the first line of immortal human cells. She died in 1951. When she was being treated for cervical cancer, the doctors at Johns Hopkins took tissue samples without her consent. Though her cells have been responsible for many important discoveries, her family has never seen a dime."