The latest tool to keep our computers safe: E-mail from the government
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This week the U.S. Department of Homeland Security launched its new Cyber Alert System. In the event of computer security threats, the department will send out mass e-mails about the danger, and what steps to take. We talk with Amit Yoran, who directs the department's National Cyber Security Division. He says the system had its hands full right from the start with the fast-spreading "MyDoom" computer virus, which hit this week. (Jeff Horwich guest-hosts.)