june, 2008. a cautionary tale of how dangerous texting can be while driving. it's a problem all across america. millions of people concentrating on their cell phones, sending text messages when they should be concentrating on the road. as this video shows, it only takes a fraction of a second for the driver to look away before calamity strikes. >> it was horrible. it was the most horrific thing i probably ever lived through. >> betty jo hummel is in the driver's seat of the suv ahead sitting in bumper-to-bumper traffic on a busy texas highway. but the driver of the san antonio bus with two disabled passengers on board doesn't seem to notice.