Sosi Setian was a professor of Armenian studies when she decided to pursue a Ph.D. While supporting herself as a courtroom interpreter, she caught the eye of DEA agents, who asked for help with a money-laundering case. Setian, now 72, parlayed her language skills and work ethic into SOS International, which today produces $200 million in annual revenue from government contracts for translation, intelligence analysis, logistics, and more. Her story: