Some Times It's All about Them
There is a school of thought that believes the embedded reporters are inherently biased in a pro-war direction, (for example, see here).
What is not often discussed is how professional ambitions make journalists defeatists. When wars go well, the uniformed military receives the praise. It is they who enter into history. We remember Nimitz and Patton, not the correspondents who wrote dispatches about the victories at Midway and Bastogne.
In contrast, Vietnam made the careers of David Halberstam, Seymour Hersh, and Neil Sheehan. Exposing military failure and atrocities makes the journalist the hero not the chronicler. It is a powerful temptation, one which could cause a reporter to lose proportion and distort the meaning of events. Yet this is not something that seems to get discussed much.