DEAR ABBY: I'm writing about the letter you printed from "Somewhere in the South" (May 26) who heard someone confess to a crime he had committed at age 12 during one of his Narcotics Anonymous (NA) meetings. The person asked if he should go to the police. You advised him to talk about it to the "group leader." Abby, in a 12-step program, there is no formal leader who has a responsibility to report anything to the authorities.