QR codes are dead, an internet marketing strategist wrote in AdAge in 2013. The murderer: "easier-to-use apps." And yet, four years later, that isn't the case. Apps have become even more prevalent and ...

Daniel Liberto is a journalist with over 10 years of experience working with publications such as the Financial Times, The Independent, and Investors Chronicle. Dr. JeFreda R. Brown is a financial ...

Bar codes, like the one seen in the lower right corner of this Nebraska license plate, are not used by police officers. However, some do scan the bar code on the back of a driver's license.