Teri didn't actually "confess" that she was sexually abused as a child. Confession implies guilt, and she was the victim-- not the perpetrator-- of the vilest sort of crime.
According to the Vanity Fair writer who interviewed Hatcher, the Desperate Housewives actress is making the story public only to help other children who find themselves in similar situations.
Which I respect.
What I don't respect is the media sexing this story up for ratings. The only person who needs to confess is the trusted male relative who abused her for his own pathetic purposes.