The deaths should be treated with dignity. ALL of them -- those of the US, those of the Iraquis, all of them. Let the families mourn; if THEY want to share that is their privilege.

That said, I fail to see why it would be undignified to show the coffins of those killed. If the goal is honorable, why would be deaths be less so?

To use these deaths or pictures as propaganda -- that would be both undignified and cheap.