dr. bennet omalu. a nigerian born forensic pathologist. >> i am the wrong person to have discovered this. >> reporter: his disisvery, chronic traumatic encephalopathy. or ct serks a condition caused by repeated blows to the head. football. >> hard shot on welker. >> reporter: the long-term effects can lead to dementia, memory loss, depression. even suicide. a discovery that pitted him against the powerful nfl. >> you're going to war with a corporation that owns a day of the week. >> reporter: in a recently published new york times op ed titled don't let kids play football, the doctor wrote, as a society, the question we have to answer is, when we k kwingly and willfully allow a child to play high-impact contact sports, are we endangering the child? his research maye helpipi to change the ongoing conversation on concussions. >> i am not done! >> he is not done. he's here with us right now. dr. bennet omalu. it's so good to see you again. i watched the film last night. having spent time with you, will sm

dr. bennet omalu is an immigrant way contact sports would be played and change forever. now the story is in "concussion take a look. >> when i was a boy, heaven was . you could be anything, you could do anything. i' discovered this. >> you don' t speak for them. i found a repetitive head trauma chokes the brain. to you. you have turned on the lights of their biggest demand. -- biggest boogeyman. >> you are going to war with the corporation that owns day of the week. >> they have to listen to us, as big as they are. >> you have no idea how bad this could get. >> i have to keep going. >> they want you to say you made it all up. >> they continue to deny my work. men continue to die. >> sometimes in life you are asked to leave it alone. >> >> who are you? >> tell the truth! tilde karen: one mit student is taking own hands, helping young athletes train smarter and safer through innovative technology. formed by ben harvatine , who wrestled when he was in school. what did you think when you heard the film was coming out? ben: definitely excited. one of the biggest challenges we

dr. bennet omalu. a nigerian born forensic pathologist. >> reporter: his discovery, chronic traumatic encephalopathy. it is found mostly in athletes who play contact heads like football. >> hard shot on welker. effectcan lead to dementia, even suicide. >> you're going to war with a corporation that owns the day of the week. >> reporter: i a recently published new york times op ed titled don't let kids play football, the doctor rowwrote, as a society, the question we have to answer is, when we kningly and willfully allow a child to play high-contact sports, are we endangering the child? >> i am not done! >> he is not done. he's here with usight w. dr. bennet omalu. it's so good to see you again. ii wched the film last night. having spent time with you, will smith really got it right. adds you know, he got a golden globe nomination. he said i'm grateful to the hfpa for recognizingr. omalu's story. he'll see you at the golden globes. will smith is such a wofrl individual. and he reminds me of my -- my chi

dr. bennet omalu will join us. >>> do you have this? >> get that neck -- >> ihunch. new headlines about how the way we use our devices could be affecting our posture. our mood. dr. ashton will be here. >>> let's go to amy with the morning rundown. >>> the stig story, tackling terrorism. president obama making a rare visit to the pent phone today. he aims so reassure americans that the u.s. military is upping its game. but there are new questions about whether officials messed warnings that the san bernardino attacker tashfeen malik had jihadi sympathies before she came to the u.s. a policy kept official from searching her social media. that policy is being reversed. >>> donald trump is apparently losing his wide lead in the race a new poll showing ted cruz closing the gap nationally. the poll finds trump and cruz clinton. the nbc/"wall street journal" poll shows the only republicans that could beat hillary clinton right now, dr. ben carson and marco rubio. >>> in northern california, health officials are scramleing to track down hundreds of people who may have been ex

dr. bennet omalu was studying the microscopic samples. >> i put the slides in and looked. "whoa."make sure the slides were mike webster's slides. i looked again. (gasps) i looked again. i saw changes that shouldn't be in a 50-year-old man's brain, and also changes that shouldn't be in a brain that looked normal. >> he saw collections of tau protein, collections which shouldn't be there in someone of mike webster's age. and this is what jumped out at him as he looked at it through the microscope. >> narrator: dr. omalu believed he saw physical evidence of the long-term damage playing football could have on the brain. it was a scientific first. >> because after i looked at it over and over and over, i was convinced this was something. >> narrator: it was a disease never previously identified in football players: chronic traumatic encephalopathy-- cte. >> chronic traumaticic encephalopathy is a disease, a progressive neuro-degenerative disease where the end stage leaves tau protein deposition in distinctive areas of the brain, in distinctive locationsns that separate this disease fro

dr. bennet omalu, the doctor who first discovered cte in football players... >> i've found a disease thateen. >> narrator: has been turned into a hollywood movie. >> the nfl went out of its way to try to smash and marginalize bennet omalu. now he's being played by will smith in a hollywood film. so the nfl's long effort to try to prevent that from happening has failed. >> narrator: also, dr. ann mckee has now examined the brains of 92 former nfl players. 88 tested positive for cte-- 96%. work that is starting to have an impact, with news this year that shocked the nfl establishment. >> 49ers linebacker chris borland has retired... >> borland is calling it a career after one season. >> decided to retire from the nfl due to concussion concerns. >> i couldn't really justify playing for money and i think what i wanted to achieve put me at too great of a risk, so i just decided on another profession. >> narrator: just one year earlier, he achieved the dream of many american boys... >> the san francisco 49ers select chris borland, linebacker, wisconsin. >> it was a dream come true. i can rememb

dr. bennet omalu)"repetitive head trauma chokes the brain." the movie follows his struggle to bring attention and get something done about the "concussion" is rated p-g 13. "point break" is a re-telling of the 1991 hit of the same name. it tells the story of an undercover f-b-i agent who infiltrates a group of international thieves. (utah) "the people behind these robberies are extreme athletes, "point break" is rated-p-g-13. jennifer lawrence stars in "joy," which tells the story of a suburban housewife who starts a business empire... despite incredible odds. (joy) "don't ever think that the world owes you anything, because it doesn't. joy is rated p-g 13. find out what's so funny about the housing bubble collapse in "the big short." the movie follows four high-finance outsiders who shine a light on the big banks' greed. (georgia hale)"i'm sure the world's banks have more incentives than greed." (mark baum) "you're wrong." the big short is rated-r will ferrell and mark wahlberg face off in "daddy's home." ferrell plays a step-dad trying to wi

dr. bennet omalu joins us.he was in the restroom and not on the stage. it may have been her shining moment through the debate. >>> presidential candidate mike huckabee joins us live. i hope he doesn't say that. this is just dumb. >> i think i'm going to go to the bathroom and just let you interview governor mike. >> so we'll talk to him. >>> first, bill karins with a check on the forecast. >> we're already tracking severe storms. a tornado warning is issued for the northern portions of arkansas and the ozarks. doppler indicated. it's not necessarily on the ground. the sun is coming up. that's near horseshoe bend. further south, a strong line of storms across central arkansas, the little rock area. when this line sweeps through, wind damage definitely and the possibility of a few additional tornadoes. that's one of the biggest stories. the tornado watch extends from areas of shreveport out wards to memphis. it will be extended further east later today. as far as the areas at risk, we'll include areas of tennesse

dr. bennet omalu, the real life neuropathologist who discovered football's specific head trauma and brought ut it to the public's attention. the attention is on and off the film. while the n.f.l. declines to comment, players like tom brady say they plan on seeing the film when it is released christmas day. here's a look. >> when i was a boy, heaven was here and america was here. you could be anything, you could do anything. i never wanted anything as much as i wanted to be an american. >> hearts here in pittsburgh are broken over hall of famer mike webster who in recent years suffered from mental illness and slipped into financial ruin. >> died of disgrace at 50. i can tell something is wrong. >> in 25 years, i've never requested a test like this. >> what are you looking for? i am the wrong to discover this. >> if you don't speak for them, who will? >> repetitive head trauma chokes the brain, it turns you into someone else. >> needles, vicodin, torodol, whatever it takes to keep them in the game. get me to the commissioner. >> they don't want to talk to you. >> the n.f.l. has known about co

dr. bennet omalu and the disease he's talking about is cte, an alzheimer's-like disease, with symptoms ofry loss and mood swings. researchers like kevin guskowitz believes it occurs from repeated blows to the head. >> you're going to withstand an impact of 157 gs. >> that's similar to a car accident. >> right. >> and what happens is, our brains slosh around inside our skulls, absorbing the force of the hit, no matter how strong the helmet. humans simply didn't evolve to take hits like that. yet there are animals that routinely take that kind of force and repeatedly. think about the wood pecker. they hit their heads millions of times over their lifetime. and can endure 15 gs every time they take a hit. it's partly due to their tongues, which wrap around the back of their skulls, acting like a shock absorber with each hit. every time their heads hit, the tongue presses down on the jugular brain, creating an additional cushion of blood. consider the big horn sheep. they charge at each other at speeds as high as 40 miles an hour. big horn sheep are able to raise carbon dioxide levels in their

dr. bennet omalu, played by will smith.igerian-born forensic pathologist, omalu was working in a pittsburgh coroner's office in 2002 when he was asked to examine the body of a local football hero: former steelers center mike webster. he discovered protein deposits in webster's outwardly healthy brain, which he linked to repeated head trauma from football, and a disease called "chronic traumatic encephalopathy" or c.t.e. the film chronicles the league's early efforts to discredit the research. >> if you retract, this all goes away. >> why are they doing this? >> they're terrified of you. bennet omalu is going to war with a corporation that has 20 million people on a weekly basis craving their product. the same way they crave food. the n.f.l. owns a day of the week! >> i knew nothing about football. i knew nothing about the n.f.l. >> brown: recently, we had a chance to talk with the real bennet omalu. >> when i saw the pathologies of mike's brain, i reviewed all his medical records: there was no single mention of any disease.

dr. bennet omalu. he's got a lot of headlines. also for the op-ed where he's says to parents, don't let your kids play football. we'll talk to him about that. >>> now to the hot air balloon that came down in the middle of a san diego neighborhood. everyone on the ground racing to save it from crashing into homes. t.j. holmes is here with that story. good morning. >> reporter: you remember the game tug of war. imagine playing that against a 2.5-ton hot air balloon with lives and property at stake. that's what a group of neighbors in california had to do. and they won. a hot air balloon carrying about a dozen people nearly crashes into this rancho santa fe neighborhood. their homes. >> this is quite a thing. >> reporter: and watch nervously. as the balloon descends by the second. >> the balloon was going in the wrong direction. it was going to land on the intersection. cars were going back and forth. >> reporter: heart-stopping moments as it runs directly into a tree. flames tangling dangerously with the branches. it continues to fa

dr. bennet omalu. who was here yesterday. he discovered a connection between playing football and brain damage. >> if you continue to deny my work, the world will deny my work, but men, your men continue to die. their families left in ruins. tell the truth. >> well, we're looking up. the monitor is up there. so we're like looking. hello, will. how are you? >> i am so good. how are you doing? >> great to see you. i watched the screener. it is so powerful and it's really beautiful, his passion, and dr. omalu was here yesterday. congratulations on the golden globe nomination. >> thank you, thank you very that's -- it's going well. this one, i was a little conflicted when i first took this film so it feels good that people are responding well to it. >> and i'm going to talk about how you were conflicted in just a moment but first, following him around, he performs autopsies. you really spent a lot of time to get the sense of who this man is, didn't you? >> yeah, he is such a beautiful man. he was here yesterday, so he is -- he's