Sick is a maker of RFID products! https:// www.sick.com/us/en/search?text=rfid
These are old, there are hours of these kids. Her brother is also filmed talking to the therapist. Spoiler alert - the kids ended up saying the mom's new boyfriend put the suggestions in their heads (after that notion was suggested by the 'therapist').
It doesn't matter if you delete your FB - they have tracking data on EVERYONE. Even if you have never had a FB page, if you've visited a website with a FB 'like' or 'share' button, they have the goods. So basically, if you've ever logged onto the Internet in the past 13+yrs, they have your data.