If the locations service is on....the GPS co-ordinates are imbedded in the photos and videos that give exact location of where the photo was taken. An "address" if you will. If you play in Facebook and noticed "Susy is at Applebees in anytown, USA"... Her smartphone has just notified the whole world where she is. Great info for burglars to know. Paranoid? I AM!
Be safe.
sandy