This is one of the reasons why I don't use FB apps. The privacy and security controls are far too loose and broad. It's never clear exactly how your data will b

This is one of the reasons why I don't use FB apps. The privacy and security controls are far too loose and broad. It's never clear exactly how your data will be used. One of my clients has a FB app so work with this stuff daily. It's so easy to build a full profile of of an active user's life, their interests, their friends, their work and education history. Their geotagged photos and check-ins tell you exactly where they like to go. Pure gold for marketers / spammers. The information is just too accessible and valuable for people to not abuse it.