Billions of dollars poured into Alzheimer's disease research has brought us no closer to understanding why some people lose their memories and fade away in front of their families. Yes, the human brain is complicated says science journalist Charles Piller, but the lack of progress is not just about biology, it's the result of arrogance, manipulated research results and downright fraud. Piller spent years peeling back the scientific scandal costing millions of research dollars and precious time for families. He details his investigation in his book, Doctored: Fraud, Arrogance, and Tragedy in the Quest to Cure Alzheimer's.