pmz said:
Stupid crap, people who volunteer their location to the public domain, or even their "friends", are morons.
Bravo to you for being aware of this. The sad thing is, everyone who uses geo-tagging cameras and social media is clueless and oblivious to the serious security implications of it all. take a photo inside your home, post it on facebook or somewhere else, and bam - now anyone and everyone knows exactly where you live, down to the street address.
this happened to the myth busters guy. he posted a photo on his blog, of his car, with a caption "leaving for work". Now everyone knows the street address where he lives, what car he drives, and what time he leaves for work in the morning.
see how it works? post enough photos, and now everyone knows your daily routine, what time you come and go, where you live, where you work, where your friends live, etc. scary stuff.