Would you tell?

Many of us have not - or cannot (for many different reasons) - meet and speak with our first parents.  Many adoptees have suffered abuse or neglect either during the child placement process, or after.  [Meaning abuse took place at the orphanage/children's home/foster home or within the adoptive home.]

If search and reunion were in fact possible, and you were promised an opportunity to have a quiet conversation with one or both parents, would you tell them you were abused by other people?  Is there a parent you would be more likely to tell?  Do first-parents have a right-to-know what happened to their relinquished child?