The World Health Organization reports that one in four pharmaceuticals are fake. The problem hits home in the developing world, where scant regulation lets useless and sometimes dangerous medicine land on store shelves. Some of the drugs most commonly faked are malaria medications. Such scamming can lead to drug resistance, scary side effects, and even death. Here to talk about his job using chemistry to ID fake pharmaceuticals is Facundo M. Fernandez, a Chemistry Professor at Georgia Institute of Technology.