FWIW, I've been that primary source for some major news stories, and the final story usually bears just a passing resemblance to reality as I experienced it. Assuming good faith on the part of the reporter, I have to assume that reality as I experienced it bears only a passing resemblance to reality as other primary sources experience it, which is congruent with other known facts like the difficulty of communication, the existence of cognitive biases, and the field of psychology. Objectivity is a myth; it's oftentimes a useful myth, but it's worth remembering that the reporter has his own biases and preconceptions as well, and as the person choosing what to report upon, these will necessarily make it into the final piece. The audience has their own biases as well, so they won't be reading exactly the same piece that the reporter wrote.