This woman apparently read something in the paper about facebook being used to catch a sexual predator, and she apparently took that to mean that anyone who uses facebook can be arrested as a sex offender. She tries to convince her (probably) grandson to stop using facebook.
Reminds me of when Napster first started making the paper. Boondocks had a comic where Granddad was reading the paper, and then he looks up and says, “Boy! You ain’t been loadin’ down on no Nappy, have you?”