Technology

His new book is called Rebel Code: Linux and the Open Source Revolution (Perseus, 2001). It charts the movement begun by computer programmers who believe software should be given away for free. Moody is a London-based writer whose work has appeared in Wired, The Economist, and The Financial Times.

Rodney Brooks, the director of the Artificial Intelligence Laboratory at MIT (Massachusetts Institute of Technology). His new book is called Flesh and Machines: How Robots Will Change Us. Brooks offers a vision of the future of humans and robots. He is also Fujitsu Professor of Computer Science and Engineering at MIT. Brooks is the chairman and chief technological officer of iRobot Corporation. He was one of the subjects of Errol Morris' 1997 documentary, Fast, Cheap and Out of Control.

Robert O'Harrow, Jr. is a reporter for The Washington Post and an associate of the Center for Investigative Reporting. His new book is about how the government is creating a national intelligence infrastructure with the help of private companies as part of homeland security. Huge data-mining operations are contracted by the government to gather information on our daily lives. Information technology has enabled retailers, marketers, and financial institutions to gather and store data about us.

Patrick Radden Keefe is the author of Chatter: Dispatches from the Secret World of Global Eavesdropping. For his book, Keefe researched the possibility that the United States has a planet-spanning surveillance network, known as Echelon. Keefe is a third-year student at Yale Law School and was a Marshall scholar and a 2003 fellow at the Dorothy and Lewis B. Cullman Center for Scholars and Writers at the New York Public Library.

Steven Johnson, author of Everything Bad Is Good for You, aruges that rather than turning our brains to mush, entertainment options like video games are so complex that our brains rise to the challenge.

Six Feet Under, rest in peace. The HBO series, which aired its final episode Sunday, followed the Fisher family and its funeral home business for five seasons. It received two Golden Globe awards and six Emmys. Alan Ball, creator and executive producer, reflects on his show about death.

Critic at large John Powers considers Katamari Damacy, a PlayStation game from Japan.

Recent controversies such as Google's business in China and the U.S. government's role in policing eBay transactions have put a spotlight on the intersection between governments and the Internet. Legal scholars Jack Goldsmith and Tim Wu address the issue in their new book, Who Controls the Internet? Illusions of a Borderless World.

Journalist Julian Dibbell talks about his book Play Money: Or, How I Quit My Day Job and Made Millions Trading Virtual Loot. He explores the world of online role-playing games, where hundreds of thousands of players log on to operate fantasy characters in virtual environments. One of the most popular games, World of Warcraft, has six million subscribers.

Linguist Geoff Nunberg considers the sending of Valentine's messages via telephone, the postal system, and e-mail. What does it say about the evolution of personal communication?

Jimmy Wales helped create Wikipedia, the interactive online encyclopedia founded in 2001. Users write and edit Wikipedia entries themselves; the site also has a dedicated corps of editors. There are often "edit wars" over entries — some, including the one headlined "2006 Lebanon War," have been edited and then re-edited thousands of times — and Wikipedia's accuracy has been questioned by some professors and colleges, who forbid students to cite it as a source. But Wikipedia, with versions in 250 languages, is one of the top 10 sites on the Internet.

Counterterrorism expert served for 30 years, under several presidents; he joins Dave Davies to discuss what he describes as a culture of mediocrity in U.S. national-security programs.

Digital media — including MP3 players, peer-to-peer networks and music websites — are changing how we discover, listen to and share music. Wired.com journalist Eliot Van Buskirk joins Fresh Air to discuss the new, digital landscape of music, and the resulting changes in the music industry.

Many people generate an immense amounts of digital data during a single day — often without a second thought. But Stephen Baker, a senior writer at BusinessWeek, warns that the information generated is being monitored by a group of entrepreneurial mathematicians.

Sixty-eight percent of all web searches take place on Google.com. But as journalist Randall Stross found when researching his new book, Planet Google: One Company's Audacious Plan to Organize Everything We Know, the company's business extends well beyond basic web searches.

John Yemma, editor of The Christian Science Monitor, discusses the paper's new publication model: It's moving the daily operation to the Web and converting its print paper to a weekly.

Transportation expert Daniel Sperling estimates that the world's car population — which currently stands at 1 billion vehicles — is likely to double in the next 20 years. Sperling is the co-author (with Deborah Gordon) of Two Billion Cars: Driving Toward Sustainability.

Chris Anderson, editor in chief of Wired magazine, talks about his new book Free: The Future of a Radical Price. Anderson theorizes that businesses can profit by giving it all away on the internet.

Critic-at-large John Powers discusses two new works — one a documentary, another a novel, that blur the lines between public and private lives.