Imagine going to the pharmacy to buy a needed medicine and then finding out you purchased a falsified product that was, at best, ineffective, but at worst contained something toxic or deadly? This is the unfortunate reality in many places worldwide. Dr. Murray Lumpkin, who leads global regulatory systems for the Bill & Melinda Gates Foundation, talks with Lindsay Smith Rogers about the substantial problem of substandard and falsified drugs, and what the world's watchdog systems are trying to do to counter them.