FROM CNN's Jack Cafferty: As snow and ice cover many of the nation's roadways, here's something to think about: At what point should elderly drivers be taken off the road? [cnn-photo-caption image=http://i2.cdn.turner.com/cnn/2011/images/01/18/art.elderly.drive.jpg caption=""] America Online reports that elderly drivers now make up almost 20 percent of all motorists. And that number is growing as the … Continue reading Tighten rules for senior citizens who drive?