In the wake of 2008 product scares involving melamine-tainted pet foods, lead-tainted toys, and melamine-tainted milk products, all originating in China, consumers in the U.S. understandably became ...

The next time you’re thinking of throwing away a used boarding pass with a barcode on it, consider tossing the boarding pass into a document shredder instead. Two-dimensional barcodes and QR codes can ...