Julie Patz, on the Today show, two years after her son Etan's disappearance.

Julie Patz, mother of Etan Patz, who has been missing for a couple of years since disappearing in New York, speaks on NBC-TV’s “Today” show in New York City on March 26, 1981. Patz said the reason so many missing children are not found is that police departments in various cities do not talk to each other in conducting searches. (AP Photo/Dave Pickoff)