re: Wife and I are thinking about adopting

Dexter very well could have RAD. That said, not all or even most institutionalized children have RAD. It's just something you have to consider, especially when adopting older children. Most have also been exposed to sexual activity by 7 or so. A very good social worker can really help someone considering adoption understand what potential issues there are and what to look for.

I have worked with over 70 couples who have adopted - just answering questions and empathizing when "the wait" gets tough. Out of all of those, only 1 child had issues.