The man who could be considered the father of modern journalism, Walter Lippmann, wrote this in his 1920 book: Public Opinion(Page 40)
The editor of the French communiqué tells us that as the battle dragged out, his colleagues and he set out to neutralize the pertinacity of the Germans by continual insistence on their terrible losses. It is necessary to remember that at this time, and in fact until late in 1917, the orthodox view of the war for all the Allied peoples was that it would be decided by "attrition." Nobody believed in a war of movement. It was insisted that strategy did not count, or diplomacy. It was simply a matter of killing Germans. The general public more or less believed the dogma, but it had constantly to be reminded of it in face of spectacular German successes.
"Almost no day passed but the communiqué.... ascribed to the Germans with some appearance of justice heavy losses, extremely heavy, spoke of bloody sacrifices, heaps of corpses, hecatombs. Likewise the wireless constantly used the statistics of the intelligence bureau at Verdun, whose chief, Major Cointet, had invented a method of calculating German losses which obviously produced marvelous results. Every fortnight the figures increased a hundred thousand or so. These 300,000, 400,000, 500,000 casualties put out, divided into daily, weekly, monthly losses, repeated in all sorts of ways, produced a striking effect. Our formulae varied little: 'according to prisoners the German losses in the course of the attack have been considerable' ... 'it is proved that the losses' ... 'the enemy exhausted by his losses has not renewed the attack' ... Certain formulae, later abandoned because they had been overworked, were used each day: 'under our artillery and machine gun fire' ... 'mowed down by our artillery and machine gun fire' ... Constant repetition impressed the neutrals and Germany itself, and helped to create a bloody background in spite of the denials from Nauen (the German wireless) which tried vainly to destroy the bad effect of this perpetual repetition."
This sounds exactly like what journalists did during the first several years of the Iraq war, doesn't it? Continuing on page 42:
We have learned to call this propaganda. A group of men, who can prevent independent access to the event, arrange the news of it to suit their purpose.
And on page 43:
Without some form of censorship, propaganda in the strict sense of the word is impossible. In order to conduct a propaganda there must be some barrier between the public and the event. Access to the real environment must be limited, before anyone can create a pseudo-environment that he thinks wise or desirable. For while people who have direct access can misconceive what they see, no one else can decide how they shall misconceive it, unless he can decide where they shall look, and at what. The military censorship is the simplest form of barrier, but by no means the most important, because it is known to exist, and is therefore in certain measure agreed to and discounted.
Do journalists represent a barrier between the public and all kinds of events? Do they limit access to the real environment? Do they form information to suit their purposes?
It's true that Lippmann writes this in the context of an army and it's propaganda, but the striking similarity simply cannot be ignored.