Medical scholar Harriet Washington joins us to talk about her new book, "Medical Apartheid: The Dark History of Medical Experimentation on Black Americans from Colonial Times to the Present." The book reveals the hidden underbelly of scientific research and the roots of the African American health deficit. It also examines less well-known abuses and looks at unethical practices and mistreatment of blacks that are still taking place in the medical establishment today.

Travelling into Palestine's West Bank and Gaza Strip, which I visited recently, is like a surreal trip back into an apartheid state of emergency.