Brain World

Find out how traumatic brain injuries are treated, and the unusual behavior that they can cause -- like a woman who lost her short-term memory, and has to be reintroduced to her husband over and over again. Also: an unusual childhood in Botswana. We hear about some ancient grave goods excavated from the former Soviet Republic of Georgia. And an American-born son of two Iraqis describes his recent return to Baghdad and his frustration with what’s happened there.