Over the past few months, the police force in Prince George's County, Maryland has been dealing with a strange rash of robberies. Thieves have been going into grocery stores and drug stores, loading their carts up with Tide laundry soap, and then rushing out the door where they have a get-away car waiting. As Anthony Randazzo explains, it turns out that the detergent is street currency for buying pot and cocaine. Briefcases full of cash are being cast aside in favor of blaze-orange containers of laundry soap. Tide, as the money gods would have it, carries nearly all the characteristics of sound money.