Yes, these exist, but a few notable stories that broke are little compared to the relentless onslaught of news from Viet Nam during the war there. It was the first time that TV news from a warzone was readily available, and footage of the fighting was still shocking to people, so it attracted viewers. As a result, new footage from Viet Nam was aired every day for literally years.

The modern military recognizes the need for PR. Abu Ghraib was mostly still pictures because it was mostly leaks--press was allowed nowhere near the place. Contrast this with videos of Hussein's statue being pulled down or the "Mission Accomplished" press conference

If you cherry-pick specific instances, sure, there was negative coverage of the Iraq War, but the big picture of Iraq War coverage versus Viet Nam War coverage is very different.