unthinkable, hoping against hope that their loved ones might be alive under all that rubble. boris, you had a powerful interview with two siblings that don't know if they'll ever see their mother again. what do they say, how are they holding out hope? >> it is extremely difficult, fred, as you see images of the process of rescue and rescue workers standing atop the enormous pile, 11 administrators -- floors of homes and where people carried out their lives. that family, the spiegel family, is suffering. they're in agony because they don't have confirmation. they're frustrated, they want answers and yet they recognize it is a painfully slow and difficult deliberate process. it was hard for me to not get emotional talking to them. here's some of what they had to