A man uses a laptop during a "Campus Party" Internet users gathering in Sao Paulo January 30, 2013. Campus Party is an annual week-long, 24-hour technology festival that gathers around 8000 hackers, developers, gamers and computer geeks from around the world. The banner (in yellow) reads "Watch out, Hackers thinking". REUTERS/Nacho Doce (BRAZIL - Tags: SOCIETY SCIENCE TECHNOLOGY BUSINESS TELECOMS)



The Pentagon announced last week that it aims to expand its Cyber Command from 900 to 4,000 people. While last month Defense Secretary Leon Panetta asserted that the US is facing a possibility of a "cyber-Pearl Harbor." Still, he refrained from using the term "offensive." But with reports about alleged US involvement in developing Stuxnet, a virus that attacked Iranian nuclear facilities, what is the US's role in this burgeoning cyberwar? Anchor Marco Werman speaks with Jim Lewis, director of the Technology and Public Policy Program at the Center for Strategic and International Studies, in Washington.

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