Why won't MSM tell the truth?

Hugh Hewitt points us toward this blog by a Marine major who flies Cobras. The major says:

For some reason, the MSM apparently still thinks we’re fighting Iraqis. Perhaps they’re out of touch…. Perhaps they’re cowering to threats…. Perhaps they have an anti-American agenda. The truth is that we haven’t been fighting against Iraq since the Spring of 2003. What we have been fighting are the variety of Islamofacist hoards attempting to take control of a freshly liberated Iraq and return it to the previous era of oppression and cruelty.

Why don’t they report that we are fighting WITH Iraqis? Why don’t they report that a significant number of “insurgents” and “militants” are made up of Syrians, Jordanians, Saudis, Pakistanis, Egyptians, and Iranians? Why don’t they report how these guys terrorize the local Iraqi populace with horrific torture, rape, and murder? Why don’t they report how the “militants” set hospitals on fire, or hide in schools, or grab children on playgrounds and use them as human shields?

Major, they don't report all that because to do so would undermine their very partisan propaganda efforts. We all know that their "reporting" has led to more of our military and Iraqi civilians being killed. They know it, too. But your blood ls a price the MSM is willing to pay to help their party politically.