Israeli chemists have found a way to hide secret codes in your soft drinks

Flickr/frankieleon Next time you see someone spilling a drink in a bar, you could actually be witnessing a spy secretly decoding an encrypted message. This might sound like something from a Bond movie. But a team from Israel has used some rather niffy chemistry to come up with a way to use common chemicals such as cola as the encryption key to code and decode hidden messages. Spies have long tried to make coded or encrypted messages even more secure by hiding them in something seemingly innocuou...