a threat to kill kidnapped missionaries if a multi-million- dollar ransom isn t paid. we re in port-au-prince, where haitians live in fear of the armed gangs. prescription drug shortage: the u.s. is running out of more than 100 life-saving drugs, including critical medication for cancer and heart conditions. eye on america. a national mental health emergency for young people. can music be the cure? jumping into action: what happens when an armed robber runs into a quick-thinking marine. dangerous produce: hundreds of people sickened. a new warning about something that may be in your fridge. and, pandemic love story: how these two frontline workers found love in the emergency room. this is the cbs evening news with norah o donnell, reporting from the nation s capital. o donnell: good evening, to our viewers in the west, and thank you for joining us on this thursday night. we re following breaking news on a number of stories tonight. we want to start wit