I received this by email today and thought it was worth passing along.
"You may remember that a young woman was abducted from a Target parking lot in Overland Park, a suburb of Kansas City. Her body was discovered many miles away in Missouri. They were able to locate her by the sequence of cell phone towers that picked up her cell phone location. She had not attempted to dial out but, when her family was trying to call her, the towers could sense her phone.
"Although the authorities were not able to reach her in time, they were able to locate her body, which was in an area they never would have searched without the cell phone tower information.
"The cell phone 'locator' can be either set on
1. '911 only' - in which case you must dial out to be located; or
2. 'Location on' - which means it is on all the time.
"There's NO higher battery usage from having it "on" all of the time.
"With it on all the time you can be located by emergency services through the police, if you fail to respond (sick, injured or worse).
"ALL cell phones have this feature. It's called Location. You'll find it under the Settings tool (on my phone it's under Settings, then I go to Location).
"Once you turn this on, then your phone is traceable (select 'Location On' (not '911 Only') to stay safe).
"Check your phone now."