http://www.electrictu.com/plugged/random/new.stm Using a PC and a phone line, a skilled person could shut off electricity to whole regions of the country, or cripple police and fire service by disabling 911 service. According to the commission's report, an estimated 17 million people in the U.S. have the skills to carry out such attacks. [17 Million?! There are some 60 million *internet users* WORLD-WIDE by some estimates. This figure is ridiculous.] "The public-switched network carries 90 percent of communications for systems like railroads, financial data, electricity, natural gas and the telephone service," said Terry Hawkins, director of the Nonproliferation and International Security division of the Los Alamos National Laboratory. The New Mexico lab is one of the primary centers where research is being conducted into ways to "harden" the U.S. infrastructure to protect it from tampering by people who either have political motives, or who are simply determined to crack computer systems for perverse satisfaction.