>> paul meyer: based on my experience, i... can't believe it. >> kroft: what do you think they're based on? >> meyer: i think they're based on profit. >> kroft: meyer says he reached that conclusion in 2010 after hearing complaints from emergency room doctors, case workers and hospital administrators. they said they were being pressured to fill beds with people who did not need to be admitted to the hospital. meyer says he audited four hospitals in texas, florida and oklahoma, and concluded that h.m.a. had intentionally billed medicare and medicaid for hundreds of thousand of dollars in inappropriate hospital stays that did not meet government standards for admission or reimbursement. did you think it was medicare fraud? >> meyer: yes. it was medicare fraud. simple as that. >> kroft: why was it medicare fraud? >> meyer: they're submitting bills to the government for the admission of patients. the patients didn't meet the appropriate prescribed criteria for admission and for the hospitals to bill medicare for the admissions. it's

joining me now is our legal news correspondent sema meyer and paul henderson.tarted, i want to let all of you know george zimmerman has sued nbc universal, the parent company of this network, for defamation. the company has strongly denied his allegations. but as we get to this, cema, i'll start with you first. cases are sometimes won or lost in the jury selection phase, if you think about it that way. what is it that each side will be working for? >> that's great point. the defense is going to try to make sure that everybody on that jury has an opinion about trayvon martin, that everybody in that jury pool, rather, has heard about the text messages, has seen the photographs, and they are going to try to get people who have that skewed opinion, that perhaps believe in self-defense. that's what they want. >> okay. and the prosecution, how many can they say, no, we disagree this person you want. how many times can they do that? >> there's a certain amount of challenges that each side has, and it really depends on the florida statute at this point. and i am not ce

general manager bob meyers thought the 26th pick from minnesota and move to 30 to get nedovic. >>> celtics trade kevin garnett pauln to the nets for a handful of players and three future round picks. that's big. news doesn't get any better for former patriots tight end aaron hernandez who was denied bail yesterday as he awaits his murder trial next month in massachusetts. hernandez is also now being investigated in an unsolved double homicide that happened last year in boston. >>> serena williams extended her winning streak to 33 matches. she beat caroline garcia in three sets. up next, 42-year-old kimiko date-krumm who became the oldest woman to ever make it for the third round at wimbledon. >> frank, pronounce it with me now. nemanja nedovic coming to an arena near you. have a great weekend, everyone. >> i just hope i don't have to spell it! nemanja nedovic! forget about it! check out this punt return our play of the day. >>> arena football canadian football league. winnipeg's washington catching it on the 30-yard line and watch him go on the turf. got some blockers, oh, make a little turn there, go left, beat a

paul was also with them. this is from the discovery channel. they were on the show "storm chasers." >>> chad meyers was in oklahoma after a monster storm hit two weeks ago. he shows us how dangerous it is to be in a car. >> reporter: just piles and piles of debris here in moore. ef-4, ef-5 damage. somewhere around 200 miles an hour. it is unimaginable what could cause a house to turn into that. if you think about a fender-bender at highway speeds of 30, 40, 50, 60 miles an hour, it gets bent up. i get it, it is fixable. we came across this car. i can't tell what you kind of car this is without looking at the blue oval that says ford. if you were in this car at 200-mile-per-hour wind speeds twlb's no place left for you inside. then we came across the front just to get even more crazy. there's no engine left. the transmission is gone. the engine is completely somewhere else. probably blocks away. we talk to some tow truck drivers. they said they get addresses where to go pick up cars and take them to the junkyard. they're finding cars three or four blocks away. think about what would happen to you in