Now 3000 people is a pretty large protest around where i live. You get a couple of hundred people to protest the war or to support gay marriage and you'll get a ton of media coverage.
But for this protest the only coverage the main local newspaper gave was a photo, no article. The photo was of 3 pro-lifers, and all 4 of the pro-aborts. The caption was something like "Pro-Choice and anti-abortion protesters demonstrated yesterday".
Similarly in the run up to the first gulf war we were told by the media that the M1 tank and the M3 IFV(Infantry Fighting Vehicle) would be disasters and death traps. In reality they helped our troops win while minimizing casualties and the troops loved them. Of course there were no retractions or apologies from the media.
So from my experience the media will do just about anything to further their position. Truth is a much lower priority for them.