For an example of why it’s so hard to trust the accuracy and completeness of the coverage of the Iraq war, read this article from Marine Corps reservist Eric M. Johnson:

Iraq veterans often say they are confused by American news coverage, because their experience differs so greatly from what journalists report. Soldiers and Marines point to the slow, steady progress in almost all areas of Iraqi life and wonder why they don’t get much notice — or in many cases, any notice at all.

Part of the explanation is Rajiv Chandrasekaran, the Baghdad bureau chief for the Washington Post. He spent most of his career on the metro and technology beats, and has only four years of foreign reporting, two of which are in Iraq. The 31-year-old now runs a news operation that can literally change the world, heading a bureau that is the source for much of the news out of Iraq.

Very few newspapers have full-time international reporters at all these days, relying on stringers of varying quality, as well as wire services such as Reuters and Agence France-Presse, also of varying quality. The Post’s reporting is delivered intravenously into the bloodstream of Official Washington, and thus a front-page article out of Iraq can have major repercussions in policy-making.

When so few people control so much of the news that comes to us from Iraq, the worldview of those few people is of paramount importance. It’s just another reason why balance is needed in the traditional media.