So if, in fact, 100,000 Iraqis died because of the war—and that number is a year old—what do we do with that number? It instantly brings you to all these imponderable questions about what's worth 100,000 dead. In a way, this doesn't seem like a helpful question to think about.

Lots of soldiers in Iraq are writing about their experiences online. Producer Amy O'Leary has read through dozens of them and talks about what the soldiers are writing.

Captain Ryan Gist was given a particularly tough assignment in Iraq: To build relationships with a town where U.S. bombs had killed twelve innocent people. But first he has to apologize to the families of those who were killed.