By PAUL WISEMAN, BERNARD CONDON and JONATHAN FAHEYWASHINGTON (AP) â¿¿ Art Liscano knows he's an endangered species in the job market: He's a meter reader in Fresno, Calif. For 26 years, he's driven from house to house, checking how much electricity Pacific Gas & Electric customers have used. But PG&E doesn't need many people like Liscano making rounds anymore. Every day, the utility replaces 1,200 old-fashioned meters with digital versions that can collect information without human help, generate more accurate power bills, even send an alert if the power goes out. "I can see why technology is taking over," says Liscano, 66, who earns $67,000 a year. "We can see the writing on the wall." His department employed 50 full-time meter readers just six years ago. Now, it has six. From giant corporations to university libraries to start-up businesses, employers are using rapidly improving technology to do tasks that humans used to do. That means millions of workers are caught in a competition they can't win against machines that keep getting more powerful, cheaper and easier to use. ___ EDITOR'S NOTE: Second in a three-part series on the loss of middle-class jobs in the wake of the Great Recession, and the role of technology. ___ To better understand the impact of technology on jobs, The Associated Press analyzed employment data from 20 countries; and interviewed economists, technology experts, robot manufacturers, software developers, CEOs and workers who are competing with smarter machines. The AP found that almost all the jobs disappearing are in industries that pay middle-class wages, ranging from $38,000 to $68,000. Jobs that form the backbone of the middle class in developed countries in Europe, North America and Asia. In the United States, half of the 7.5 million jobs lost during the Great Recession paid middle-class wages, and the numbers are even more grim in the 17 European countries that use the euro as their currency. A total of 7.6 million midpay jobs disappeared in those countries from January 2008 through last June.