NO man, who has not served time in prison, can understand or appreciate the problems that face inmates. A conducted tour of the penitentiary, talks with the men, and even letters to them cannot give one the insight necessary to be of much help. There is always a barrier between: one man has freedom, the other does not. Though friendship can develop, it is a friendship of strangers, and it takes something more than that to bind these two opposites together. This is where AA can fill the gap.