. >> sreenivasan: and for that, we turn to stephen balkam of the family online safety institute, a groupresenting major players in the tech industry. he's a member of facebook's safety advisory board. and jim steyer, founder and c.e.o. of common sense media, a not-for-profit group that studies the impact of technology on kids. so jim steyer, let me start with you. what's your concern about these changes? >> facebook's privacy policies are sort of like the weather-- they're constantly changing. that's about the only thing you can be sure of. and as the parent of four and running the biggest kids' media group in the country, you know that these privacy policies are going to confuse parents, but most of all they're going to continue to erode some of the privacy rights of children and teens who are on facebook. we really are particularly concerned that in many cases, kids will self-reveal before they self-reflect, put out information that can be damaging to them, can be bullying to others. and in a public context, the consequences can be bigger. so we have a lot of concerns about this latest