Aleksandr Kogan -- the app developer at the heart of the Facebook privacy scandal -- weighs in on the Cambridge Analytica controversy. We go inside MIT's Media Lab -- where scientists are turning futuristic ideas into present day possibilities. Plus -- a decade long look into the progression of an Alzheimer's patient. Those stories on tonight's "60 Minutes."  Learn more about your ad choices. Visit megaphone.fm/adchoices See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.