Come on people, let's get a grip. This week, Chicken Littles like Ted Kennedy and Robert Byrd were ranting that Iraq is another Vietnam. Pundits and sages were spinning a whole series of mutually exclusive disaster scenarios: Civil war! A nationwide rebellion! Maybe we should calm down a bit. I've spent the last few days talking with people who've spent much of their careers studying and working in this region. We're at a perilous moment in Iraqi history, but the situation is not collapsing. We're in the middle of a battle. It's a battle against people who vehemently oppose a...