The group interview is a way of seeing people outside the realm of authority and instead sees them in a more casual light. In investigative news reports when people are put into a group setting, they are often given less respect and seen more as the object of spectacle instead of a valid voice in a debate. This can be a useful tool, though at times dishonest, to transvalue the validity of certain ideas and persons. Make sure that you are aware that anything they say will have less weight in the audience's mind if you are able to see them as a member of a larger group in a single image. Often times the reason for this is that on some level the viewer assumes that if a single person is given their own space it is because they are significant. If they are part of a group then the group is as significant as the single person, and therefore each individual within that group is not.