we begin with american philanthropist greg carr. he's committed himself and his fortune to helping one of the poorest nations on earth, mozambique in east africa. as scott pelley first reported in 2008, greg carr thinks he's found something special in a wildlife park that could be mozambique's salvation. >> greg carr wanted our first experience of gorongosa to be just like his was in 2004: a helicopter ride to see the park's vast size and breathtaking diversity. >> when we flew over this, i said, "this is it," you know, because, i mean, it's beautiful. it's magnificent. >> it's almost 1,500 square miles of african wilderness: lakes, plains, even a rain forest. gorongosa spreads across the heart of mozambique, a country that lies along the east coast of southern africa on the indian ocean. >> oh, wow. >> carr can't fly over it without sounding like a kid. >> okay, look at this. this is great. >> here he goes. we saw hippo, antelope, and elephant, but not many. gorongosa is a tragedy in two parts, with the loss of its animals and the

. >> mateus mutemba works with greg carr. you know, i noticed-- hey, my man-- a lot of the children, their bellies are distended. >> yes. >> they're obviously not well. >> yes, in most cases, they are not even aware they are sick. >> part of it's because folks like these can't get anywhere close to a nurse or a doctor. >> the clinics are very far away. the nearest is 19 kilometers from here, so when they are sick, they stay at home, pray, and hope that they will get better. [rooster crowing] >> now compare that village we just saw with the future that greg carr sees. these are people from another village called vinho. it's rush hour on the pungue river, which runs along gorongosa park. a couple of hundred of these villagers were working for the park as rangers, cooks, and the like. you know, this is venice with crocodiles, isn't it? we made the reverse commute. carr wanted us to see the difference in vinho village. you know, i have to think that there was a temptation for a big-deal i.t. guy from america to come in and say, "

greg carr from howard university. thanks pour your time this morning. >> my pleasure. thank you. >>> rarely do we get to hear from the president's two daughters. >> but we got to hear sasha's lighthearted side yesterday. president obama had just taken the oath of office and went to hug his family. what you might not have heard was his exchange with his youngest daughter sasha. >> i did it. >> in case you missed it. sasha congratulated her dad and said good job. >> he said i did it. >> you didn't mess up. referring to his 2009 inauguration where there was con pugs in the wo fusion you in the wording of the oath. chief justice had to readminister the oath. >> we're getting a look at the platform where the president will take the oath of office. 1600 people there on that platform. our coverage from capitol hill continues live >>> this is a bird's eye look at the u.s. capitol this morning. the inaugural