S6, E22: "Brainhackers" Advancements in neurotechnology are blurring the line between biology and technology. An emerging push to implant electronic devices inside the human body and hardwire them to our brains may allow us not only to overcome a host of ailments but to open up new avenues of human experience. Thomas Morton gets an inside look at what might be the next evolutionary step for humankind. "Fall of Rio" Brazil hosted the 2014 World Cup and 2016 Olympics in an effort to create wealth and improve safety and security for the nation's poor. But today the country is in a financial crisis, its government is consumed with a monumental corruption scandal and violence is rising as drug trafficking gangs fight for control. Ben Anderson returns to Rio to see what happened.