One might explain the difference in reaction by saying

that we naturally respond more strongly to the deaths of Americans closer to
home than to those of others halfway around the world. But then consider the
fact that, every month during 2001 more Americans were killed in automobile
crashes than were killed on 9/11 (and it has continued every month since
as well). Since the victims of car accidents come from every geographical area
and every social stratum, one can say that those deaths are even “closer to
home� than the deaths that occurred in New York, Washington, and Pennsylvania.
It may be harder to identify with an earthquake victim in Asia than
with a 9/11 victim, but this cannot be said for the victims of fatal automobile
accidents
Karen Coley: premise is??? and conclusion is???

Premise: People respond more emotionally to American auto accident victims than to those from 9/11 and abroad.

All categories are seen more as numbers, unless we know the victims personally or we can identify with them. The more we can identify with the victim in any way, it will effect us more.

Unfortunately, with auto accidents, too many of us say, "It won't happen to me," ignoring any lessons involved.

I hope this helps. Thanks for asking.