Which is worse?

Can someone help me understand this?

People in Missouri are having prayer vigils over 5 civilians shot by a criminal lone gunmen there yesterday, and are apparently rather shaken up over it. It's at the top of national headlines.

But are they, or anyone else, or the national media, particularly concerned that gunmen whose salaries *we pay* continue to kill civilians, incluiding children, every week in Iraq? (The correct and bloody obvious answer here is: "NO")

Which is worse? (I know my answer. What's your answer?)

Is a reasonable explanation for this that Americans are essentially more human than Iraqi's? If you say not, can you justify your answer or provide an alternative explanation?