A thorough explanation of anti-counterfeiting inks and security texts

HP Labs' Steve Simske is an Honorary Professor at the University of Nottingham and here he explains the nerdy side of anti-counterfeiting inks and printing methods. As with most videos from the Computerphile YouTube channel, the videos here are a bit technical but incredibly fascinating if you can sit through the jargon to realize how much brains and smarts go into something as simple as printing.