Who Owns What?

Suppose you drop a family photograph on the subway, is it still yours?  Not if Brian Dunn finds it.  He collects lost photos and makes them his own.  I’m Jim Fleming.  Next time on To the Best of Our Knowledge “Who owns what?”  If there are copyrights are there copy “wrongs?”  And who owns water?  Coke and Perrier think they do, and they’re doing something about it.