Glenn Greenwald is a columnist on civil liberties and US national security issues for the Guardian. A former constitutional lawyer, he has written for Salon and is the author of three books, "How Would a Patriot Act?" a critique of the Bush administration's use of executive power; "A Tragic Legacy," which examines the Bush legacy; and "With Liberty and Justice For Some: How the Law Is Used to Destroy Equality and Protect the Powerful."
Former RealNetworks executive Alex Alben says digital technology is leading to more connection and more alienation. Alben talks to Ross Reynolds about what the rise of digital technology means for the future of America.