Priorities USA Action, an Obama super PAC, released an attack ad this week implicating Mitt Romney in the reckless homicide of the wife of an employee Romney never met. The ad blames Bain Capital's decision to close a GST Steel plant for the cancer death of the spouse of a former employee who no longer had health insurance.The ad features Joe Soptic, the former employee, who tells the audience:I don't think Mitt Romney understands what he's done to people's lives by closing the plant. I don't think he realizes that people's lives completely changed. When Mitt Romney and Bain closed...