American artist Hasan Elahi on fighting the assault on his privacy by turning his life inside-out for the world to see, after his name was mistakenly added to the US government's watch list. "White hat" hacker and cyber security expert Mikko Hyppönen calls for digital privacy in the age of government surveillance. Former White House deputy CTO Beth Noveck shares her vision of practical openness: connecting bureaucracies to citizens, sharing data, and creating a truly participatory democracy. Health IT expert John Wilbanks explores whether the desire to protect privacy is slowing research, and if opening up medical data could create a wave of healthcare innovation. Behavioral economist Alessandro Acquisti discusses how everyday decisions contribute to blurring the line between our public and private lives.