As Wisconsin heads toward lifting a ban on carrying concealed weapons, researchers at the University of California-Davis have turned up some unsettling information about those who may take advantage of the law. In a study using 15-year-old data -- the most recent available -- published online in the journal Injury Prevention, the UC Davis Violence Prevention Research Program says those who carried concealed weapons or who had confronted someone with a gun were twice as likely to be heavy drinkers than non-gun owners. Gun owners who drove with loaded weapons were four times more likely to hop behind the wheel...