How the Bar Code Took Over the World

http://mobile.businessweek.com/articles/2012-12-17/how-the-bar-code-took-over-the-world?utm_source=feedburner&utm_medium=email&utm_campaign=Feed%3A+mediaredef+%28jason+hirschhorn%27s+Media+ReDEFined%29&utm_source=twitter&utm_medium=hootsuite&utm_campaign=winter112