Banks routinely snitch on customers and even deny services to people politicians don’t like. The House Judiciary Committee is investigating banks for sharing Americans' financial information with the FBI without regard for privacy concerns. In fact, there's no doubt about the threat to civil liberties posed by the government's leverage over the financial industry; that's long established. At question in this investigation is whether the danger to our freedom inherent in that cozy relationship is being wielded in political warfare between the country's political factions. But the larger problem should be fixed no matter what lawmakers discover. "Today, Chairman Jim...