Here's a short explanation:
RAD arises from a failure to form normal attachments to primary
caregivers in early childhood. Such a failure could result from severe
early experiences of neglect, abuse,
abrupt separation from caregivers between the ages of six months and
three years, frequent change of caregivers, or a lack of caregiver
responsiveness to a child's communicative efforts.
It afflicts a couple families we know who have adopted children--including this one.
We know them quite well--Mom and Dad are Tommy's godparents.
If you can help in any way, it would be greatly appreciated.
Thanks to Mark for spotlighting this.