Cyber Security and Internet Freedom

The Internet is now essential to the global economy, the military and politics. But users are vulnerable to attacks from the inside as well as the outside. We talk with one of America's most notorious cyber criminals, now a security consultant, and others about cyber security. Also, forget another international agreement to replace the Kyoto protocols. Climate change will now be addressed by a patchwork of solutions agreed to by individual nations.

Banner image: The logos of the U.S. Department of Homeland Security are seen on computer terminals in a training room of the US Cyber Crimes Center in Fairfax, Virginia. Photo: Alex Wong/Getty Images