I remember an incident on the David Letterman show where a heavy-set woman was taped eating an ice cream cone during a major tennis tournament. Letterman used that footage repeatedly on his show, adding his own comments about the woman's eating habits. The woman sued the network, because the cameraman failed to obtain a photo disclaimer. She did not give permission to use her image on television, especially in a degrading manner. These things matter, which is why news photographers often film subjects on the street from the shoulders down.