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Jun 1, 2010 9:06 AM by Bea Karnes, News First 5

Military GPS glitch impacts thousands

A defense expert says a problem that rendered as many as 10,000 U.S. military GPS receivers useless for days is a warning to safeguard a system that enemies would love to disrupt.

John Pike, director of Globalsecurity.org, says the Global Positioning System is central to the American style of war.

The Air Force says the problem occurred Jan. 11 when new software was installed in ground control systems for GPS satellites. Officials say between 8,000 at 10,000 receivers could have been affected, out of more than 800,000 in use across the military.

The Air Force has not said how many weapons, planes or other systems were affected or whether any were in use in Iraq or Afghanistan.

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