In light of the controversy over Ryan Howard's home run ball, as well as past controversies over other record-setting and significant balls, I wonder if we are heading towards a change in how baseballs hit into the stands (at least fair balls) are treated.It seems to me that MLB and individual teams control this. Fans keeping baseballs is a matter of tradition and historical practice, practice that is not followed in most other sports--football, basketball, tennis. The question of how a b...