Our Fragile Computerized World

An existence so dependent on computers and the Internet means a glitch can do more than delete your presentationit can roil the stock market, or black out 15 states

The computer snafu that sent the Dow Jones industrial average plummeting 178 points in one minute on Feb. 27 was only the latest reminder of how dependent the U.S. public has become on computers—and not just the laptops and handhelds many people carry between home and work.

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