In a car, such a system could analyse a developing fault and add it to a coming service schedule if it were minor, or if it were more serious locate a nearby service centre, check on workshop availability and suggest the driver go there immediately.

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The goal is to help organizations better secure smartphones and tablets in the workplace with a hosted service that allows the IT team to remotely locate, lock or wipe a lost or stolen device, as well as update software to protect against spyware and viruses.

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The local fire service used seismic and acoustic equipment as well as a camera to locate the dog who was found about 4ft (1.2m) underground on Wednesday.

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Users of its open service should get quicker, more reliable fixes and be able to locate their positions to within one metre compared with the current GPS-only error of several metres.

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In July McAfee bought tenCube, a company that runs a mobile security service called WaveSecure that similar to Lookout can remotely locate phones, back up data or wipe it altogether.

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Free mobile security apps abound, such as Where's My Droid or Find My iPhone to locate your smartphone and programs to back up and restore data such as Apple's iCloud service.

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Investigators from the FBI and U.S. Postal Inspection Service in the Dallas-Fort Worth area in Texas hope that a reward announced Wednesday may help locate the individual who has now sent an estimated 380 white-powder envelopes since he first began his annoying practice in 2008.

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