One of the hairier unintended consequences of cheap 3-D printing is that any troublemaker can duplicate a key without setting foot in a hardware store. But clever lockpickers like Jos Weyers and ...

KEYS have been around for a long time. The earliest, made from wood, date back 4,000 years, to the ancient Egyptians. The Romans improved them a bit by making them from metal. But there, more or less, ...