This is an essential book, covering hundreds of years of extremely unethical experiments on Black people in the US and abroad and the implication of that history for medical science and bioethics today. Washington goes into a lot of detail about some of these cases, which make for extremely troubling reading - I had to take a break multiple times. There are some issues I have with the statistical/side effect reading of some of the more recent research discussed in this book, but it doesn't take away from the overwhelming case for a thorough societal accounting of the huge number of injustices here. Highly recommend.