FROM CNN's Jack Cafferty: It's a debate almost as old as the country itself: whether it's a good idea for private citizens to own guns. [cnn-photo-caption image=http://i2.cdn.turner.com/cnn/2011/images/01/11/art.glock.jpg caption="A Glock 19 handgun."] And when something like the Tucson massacre happens, the debate roars to life all over again. It was remarkably easy for the shooter – … Continue reading Tucson tragedy enough to change gun laws?