Embedded Player Thursday's topics: Many are still missing in the aftermath of Katrina; what are organizations doing to help reunite them? Guests: Ann Scofield, manager of the National Center for Missing and Exploited Children's Project Alert; Dr. Lucille Perez, national director for the NAACP Health Department; and Mary Green, a 49-year-old resident of Avondale, La., who was separated from her husband after evacuating from New Orleans' Superdome to Houston.