marissa us at q-and-a.org. these are also available as c- span podcasts. >> coming up tomorrow on "washington journal," we will look at developments in the presidential and congressional campaigns around the country with an editor charles mahtesian. after that a look at health care costs. and then, we are joined by a staff writer who will talk about what congress is expected to do with the farm bill that expires at the end of september. "washington journal," with your calls, tweets and emails." president obama was in chicago today for a fundraising event. there was an event here at the bridgeport art center. he commented on the mitt romney choice of paul ryan as his running mate and talked about when he calls the two visions for moving the country forward. tomorrow the president begins a three-day bus tour across iowa iowa. this event is about half an hour. >> chicago looks good. and all of you look good. >> ♪ happy birthday to you happy birthday to you ♪ [cheers and applause] >> thank you. thank you very much.

marissa us at q-and-a.org. these are also available as c- span podcasts. >> coming up tomorrow on "washington journal," we will look at developments in the presidential and congressional campaigns around the country with an editor, charles mahtesian. after that, a look at health care costs. and then, we are joined by a staff writer who will talk about what congress is expected to do with the farm bill that expires at the end of september. "washington journal," with your calls, tweets, and emails." president obama was in chicago today for a fundraising event. there was an event here at the bridgeport art center. he commented on the mitt romney choice of paul ryan as his running mate and talked about when he calls the two visions for moving the country forward. tomorrow, the president begins a three-day bus tour across iowa iowa. this event is about half an hour. >> chicago looks good. and all of you look good. >> ♪ happy birthday to you happy birthday to you ♪ [cheers and applause] >> thank you. thank you very m

marissa. according to former employees, this was not unusual at kool smiles. they say the chain encouraged its dentists to use crowns. >> the reimbursement for a stainless-steel crown is much more than a filling. >> o'brien: how much more? >> about 50% more. >> they do a lot more... >> o'brien: a lot of procedures. frontline and the center for public integrity have spent the past year investigating the business of medicaid dentistry and the new corporate model for treating america's poor kids. >> this is all billings from medicaid. >> o'brien: we were able to obtain and analyze medicaid data from two states: virginia and texas. we found that on average, kool smiles used crowns more frequently than other providers on children eight and under. in texas, half of all the restorative care on kids eight and under, stainless-sel crowns, 50% more than the state average. virginia, 50% more crowns than average. that's a big difference than other medicaid providers. why? >> our focus is looking at each and every child and looking at where their decay is, what their risk for getting cavities. >> o'brien: it's not because

use life saving epi pens. >> do you always have an epi pen with me? >> yes. and benadryl. >> reporter: 13-year-old marissaole knows she has to be vigilant about any food she comes in contact with because of dangerous nut and fish allergies. >> because my throat closes up and it's like i can't breathe. >> reporter: at a recent nationals game she started eating some vegetarian chili until her mom spotted what looked like a peanut and snatched it away. >> by the time she was getting ready to dip her chip in there and i said what are you doing? i said put it down. there are nuts in there. >> reporter: ruth cole contacted the health department and the the restaurant to make sure signs were put up to warn patrons about nuts in certain dishes. at schools kids can be exposed to dozens of foods and thousands of severe reactions happen each year. >> approximately half those people actually have epinephrine in the vicinity or available. it just wasn't used in time. >> reporter: the dr. says adults may feel intimidated about injecting a child, so teaching school staffers how to use epi pens quickly is paramount. this

marissa, rob, the general manager, ali and david, you guys are awesome. i'm sorry if i left anyone out. they went above and beyond to accommodate us. they always had a smile on their face which is tough working those long hours, so thank you so much. >> especially the messes that you left in your hotel room and what they had to deal with. how you got a goat in there, i'll never know. >> i returned it. >> the petting zoo was shocked. >> funny. >> a couple of pictures. you saw the first one up there. i'm not sure what order they come up in. i had the most fun in my life at this convention. rudy guiliani, throw the next one up. scott walker. let me tell you something about the wisconsin delegation. they let us hang out with them. they were right up front because wisconsin, a swing state, important state. >> great seats, very nice. >> this one happened to be new jersey. look what i found, governor chris christie. fantastic. everyone is just so nice there. had a great time. >> bob, what were your favorite moments. >> my favorite moments? i want to mimic what angie said about the hotel. they were great. the only thing i would say is that

us directly at kelly underscore evans or @ross westgtate. >> still another 3.5 days to go before everybody can say job done. still to come on "worldwide exchange" how marissa'sove at the top of yahoo will inspire more kids to go into jobs at i.t. we'll take a look at teaching girls to code. >>> you're watching "worldwide exchange." >>> you're watching "worldwide exchange" and these are your headlines. the latest string of data out of china shows weaker retail sales. >> red ink marches news corp. >> nestle posts better than expected first half earnings and says it expects raw material prices to ease. >>> news in the u.s. marissa may be making her news at yahoo. mayer is telling employees that the top priority at the struggling web company should be products. the journal says she's reportedly told yahoo workers, i want you thinking about users. marissa mayer is setting a good example for young women who want to break into computer science. there's still a glaring gender gap in the i.t. community. a new program is aiming to bridge that by helping young girls learn how to code. cnbc contributor natalie morris joins us with the story. natalie, good morning to you

us. we've got your responses throughout the morning. i'm sure plenty of responses will say things like, increase the stock price. >> or employ marissa mayercoming up, sunday marks eight years since google became public. what an incredible ride it's been for investors in google's stock. we're going to talk about that with the author of "the google story." taking a look at futures as we head into the open this friday. an important bounce potentially. it could take us to year highs. stay with us. and more "squawk on the street" from the nyse straight ahead. [ male announcer ] eligible for medicare? that's a good thing, but it doesn't cover everything. only about 80% of your part b medical expenses. the rest is up to you. so consider an aarp medicare supplement insurance plan, insured by unitedhealthcare insurance company. like all standardized medicare supplement plans, they help save you up to thousands in out-of-pocket costs. call today to request a free decision guide. with these types of plans, you'll be able to visit any doctor or hospital that accepts medicare patients... plus, there are no networks, and you'll never need a referral to