arkansas representative tom kahn is visiting a local school. he is talking to nice graders about financial literacy. -- night raiders about financial literacy. she is here to talk about a rise in stay-at-home mothers. why are we seen this rise and who these moms are? guest: thank you for having me. the share of all moms who are staying at home and not working outside the home is up to about three in 10 as of 2012. that is about from about a quarter in 2000. some people might be surprised to hear that stay-at-home moms in general are not necessarily the college educated affluent moms we see in journalism stories. they are less educated than working moms. they are more likely to be immigrants. they're more likely to be in poverty. there are a variety of moms who stay at home. these are not just the married moms with working husbands. there are single or cohabiting with a partner moms. that is the $64,000 question. there may be a lot of things going on. we think there are a mix of factors. we are seeing and increase in mother staying home because

how do you transport one of the largest ever kahn vors? tom ackerman explains. >> five days after leaving by trucks the 16 crates containing the tyrannosaurus rex arrives add his home, the history museum. >> the rancher who won fame by discovering the fossil in 1988 was as excited by the event as any tourist. >> we thought we were done with the hooray, and now this is welling up and here we go again, and it's just as much fun this time around. >> visitors will be able to watch as the staff unpacks, cata logs, photographs and digitally scans the bones. once assembled the dinosaur will be mounted, showing the stature that effects its name. the smithsonian had this acquisition as one of the largest t rex fossils, but not as big as the one allowed to get aa. >> this is sue, discovered in south dakota and the star attraction at chicago's field museum, it was bought at auction for $8.3 million. a record sum for a dinosaur and more that the smithsonian could bit. their t rex was found on public land so was free. it will form the centrepiece of an exh