NORAD

Personnel from Peterson Air Force Base in Colorado Springs will try to fill in for the volunteers who normally field children's phone calls on Christmas Eve.

Despite gridlock in Washington, D.C., more than 1,500 military personnel and volunteers at a Colorado Air Force base will be hard at work Christmas Eve, tracking Santa and answering children's calls.

Critics — some might say Grinches — don't like the defense command's annual online effort to "track" Santa's travels. But for those who wish to follow his journey, the high-tech tool is up and running.