As a coalition of medical groups see it, children don't have enough privacy online. Right now, marketers could potentially be tracking the online behavior of minors, including adolescents who divulge more information than they realize. The American Academy of Pediatrics and American Psychological Association, plus other groups, are asking the FTC to issue rules barring the Net industry from profiling adolescent web activities, including activity tracking and scans of profiles posted on social networking sites like MySpace. Article