rick levin thaul has more from -- levinthal has more from new york city. >> reporter: the painful memoriesrom 9/11, 2001, victims' families gather near the foot proents of the twin towers as the -- footprints of the twin towers as the names are read. >> we love you and miss you terribly. >> reporter: president obama holding a moment of silence hours after a flag was unfurled. the stars and stripes on display on the side of the building hit by flight 77. >> for me, and for so many others at the pentagon, the weight of their memory and our duty to honor it is something we do carry with us every day. ♪ >> reporter: a ceremony in shanksville, pennsylvania, honoring the passengers of flight 93 who refused to let the hijackers reach their intended target. folks also coming together in new york to honor the fallen and a flag for each victim sits on the front lawn of this new jersey high school. ♪ >> reporter: allied forces in afghanistan marking the day with a wreath-laying ceremony. >> our mission here is vital for the millions around the world and will continue until we eliminate the threat to

no one knows more about the business of college than rick levin. he is an economist. he was the president of yale for 20 years. the longest tenure in the school's history. and now serves as the ceo of course air is rah a for-profit education company that offers open, online college courses in a dozen languages, in partnership with more than 20 universities. joined by joe mann of reuters and hannah kuchler of the financial times. lots to talk about including course air is rah. that is the beginning and that is the traditional four-year college with a campus. what is the state of colleges these days? >> well, you know, i think it's good. the top colleges in the united states are still the best in the world and still attract the best students. and that four-year experience is still an extraordinary valuable experience. some of the concern about the worries of colleges are overblown. the biggest single problem has been underfunding by state governments of the state institutions, which are where the real cost of attendance has gone up dram emptyically. less so for private

meet one of the guys who wants to get you to college, rick levin was the president of yale for 20 yearslongest ten your of yale's presidency, he is now running an online college course. this sunday levin and i will sit down to talk not just about college on the internet but future of regular four-year college. look at colleges, parents balking at high costs, state governments cutting funding, the president of the united states pushing for free enrollment in community college. four year campus colleges are really getting disrupted by a lot of things. >> very much so. >> this was a natural outcome given how expensive it is to go to college that there would be other ways of options. >> a push back, particularly yale. sunday morning after "meet the press." >>> californians have a reason to get out of the bay area. gas prices for labor day weekend are the lowest that they have been since 2004. how about that. how do you like them apples? the reason for the road reprieve, low crude oil prices and a quiet hurricane season. san jose is the cheapest at $3.13 followed by oakland at $3.17 and driv