Much has been made of that admirable woman, Margaret Hassan especially her vast humanitarian work among poor Iraqis. Her execution was a very tragic event, as no doubt was that of all hostages in Iraq.
It is right to feel repulsed and outraged by her killing, but it is not to blame her death on all Iraqi or Islamic militants. Several Iraqi resistance groups in fact called for her release and many Iraqis who knew her begged for her release.
Before we all jump to conclusions about the barbarity of those Iraqi militants/extremists please keep in mind that nothing is clear or certain on the circumstances of her death.

This article makes a very valid argument about the American killing of an unarmed man during the campaign in Fallujah and American atrocities in general.
I assume that the point derived is how the media blames all hostage deaths on all Iraqi resistance fighters, yet when western /American soldiers commit murder it's blamed on the individual and not on the whole.