Cyber con artists are using artificial intelligence, apps and social engineering to scam Americans out of $10 billion dollars a year. Sharyn Alfonsi reports. Four years after the Cathedral of Notre Dame was nearly destroyed by fire, Bill Whitaker returns to Paris to witness the resurrection of the medieval structure and powerful symbol of France. With brains six times larger than humans and most of their lives spent in the darkest depths of the ocean, sperm whales are largely misunderstood. Cecilia Vega searches the Caribbean Sea to find these massive mammals. See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.