i want to bring in nick kristoff, a pulitzer prize winner and a professor of education at new york university. gentleman, welcome to the program. this particular story was widely e-mailed. the discussion was interesting. another story i wanted to bring in. research showing kindergarten may be starting too late. consider this quote from "time" magazine, rethinking pre-k. five ways to fix preschool. take two kids, one from low income the other middle class. let them run around in respective homes at age 5 enroll in kindergarten. were the first day of school comes around, the child from the lower income will be 1 1/2 years behind grade level. the middle class kid 1 1/2 years ahead. that's a three-year gap in learning at the very start. are we starting too late? >> in terms of fighting poverty, there is abuntant evidence to address it early on. some evidence, address it actually in utero with helping mothers -- one of the most helpful projects is a nurse family partnership, which works with mothers while they're expecting. and things like the perry preschool project, another project, terrific res

joining me is nick kristoff. spoken many times in the last ten months about the arab spring uprising. where does this fit in the demise of moammar gadhafi? >> this is a huge milestone. some of the other arab revolutions haven't gone so well. you look at syria and nigeria and even egypt is pretty messing. this, i think, is going to end the opposition to the new libyan government and it's going to send a powerful message around not only the arab world but to dictators about the dangers of hanging on too long. i think this is going to build moral in places like syria and yemen and protests and i got tweets from people in bahrain saying, us, too. >> yeah. it's been an extraordinary time for that whole region. i mean, in gadhafi's case, there he was calling these rebels rats and he was killed like a rat. >> three-quarters of libyans have known no other ruling and it's inconceivable what has happened and to me it's a reminder that history doesn't just inch along. it's in huge continuities and i think that's what we're

>> nick kristoff explains it really well.ome pieces of the speech my dad did in normandy this weekend -- >> you're not going to read them, are you? >> no, i'm not. because they're a little bit too complicated for this group. >> dr. sachs here, that's an insult. i think we're out of time. >> nick kristoff, let me break it down for you. he says the frustration in america isn't so much with inequality in the political and legal worlds as it was in arab countries although those are concerns too. here the critical issue is economic inequity. according to the cia's own rankings of countries by income inequality, the united states is more unequal a society than either tunisia or egypt. three factoids underscore that inequality. the 400 wealthiest americans have a greater combined net worth than the bottom 150 million americans. possess more wealth than the entire bottom 90%. in the bush expansion from 2002 to 2007, 65% of economic gains went to the richest 1%. joe? >> you know, dr. sachs, the rich have always been with us. but when