A Machine That Sniffs Out American Cash

Dollar Bills iBid, State of Illinois You know that unique smell of money. You're not imagining it, either; it's real, produced from a combination of the paper and ink it's printed with, and it's even detectable by sniffer dogs. Now, one California company is hoping to build a portable machine that can smell out money as well as a dog can. KWJ Engineering is developing something it's calling the Bulk Currency Detection System, to detect fat stacks of laundered American cash as it's carried across...