Barack Obama must be tired of hearing the well- founded criticism that without a teleprompter, he becomes a mere mortal when it comes to public speaking. At outdoor rallies in Colorado on Monday, he used the device for the first time in a less-than-formal setting. His campaign said he was rolling out a new stump speech and wanted to get it just right. Or could it be that [cue the weird, science-fiction-movie music] the device is using him? Scene One - Morning, Sept. 15, in the limo on the way to the Cross Orchards Living History Farm in Grand Junction,...