One of your girls' daughter is on Facebook.
Your daughter is her friend.
They are 16 and 17.
Your daughter left her computer up and you see her Facebook account.
You see something disturbing that your friend's daughter said so you click on it.
There is a serious argument going on between she and a group of girls and boys that basically are calling the child a ho and one of her "friends" actually has pictures up of the child looking kinda...um...erra...suspect.
You spend about thirty minutes reading this ish.
Your daughter is at work.
What do you do?
How do you handle?
Do you stay out of it?