Reuters Special Report - The Pentagon's new cyber warriors
Reuters reports: "U.S. officials have shown increasing concern about alleged Chinese and Russian penetrations of the electricity grid, which depends on the Internet to function. Beijing, at odds with the United States over Taiwan arms sales and other thorny issues, has 'laced U.S. infrastructure with logic bombs,' former National Security Council official Richard Clarke writes in his 2010 book 'Cyber War,' a charge China denies."

Comment: This is a well written report, well worth your time to read.