By Brian Williams, Anchor and managing editor
In President Bush's wide-ranging news conference today, some people listening to what he said about Katrina (and I'll leave the substance of his remarks for others to analyze) might have thought he made a mistake. He talked about the "chopper drivers" of Coast Guard helicopters. Its actually an old aviation term, often used by military types, used to describe pilots. You will often hear a first officer or weapons officer ask each other, "Who's your driver?" Meaning, "Who is piloting your aircraft?