http://www.foxnews.com/story/0,2933,520636,00.html

Mismanagement and underinvestment by the U.S. Air Force could possibly lead to the failure and blackout of the Global Positioning System (GPS), a federal watchdog agency says.

The risk of failure starts in 2010, according to the Government Accountability Office (GAO) report quoted by PC World.

The failure would impact not only military operations, but also the millions of people and businesses who rely on the satellite-based navigation systems built into cars, boats and cell phones.