should tilikum be back as part of the show? >> well, here is the deal with tilikum.he's been out of shows for about 13 months so he's really completely out of condition, he's also been extremely stressed because he's got broken teeth and he's been on antibiotics on and off. he's chronically dehydrated because he's eating about ten gallons of gelatin a day which is about 80 pounds to keep him hydrated because he's eating dead fish and he's been isolated. so, of course, putting him back in the show would be a good thing for him, get him back in condition and be socially stimulating for him. so from that standpoint, seaworld does have a point. putting tilikum back in the show would be a good thing for him and his mental health and emotional health and for his physical health. on the other hand as you just said, tilikum has been involved in the deaths of three people over the past 20 years. so when you put him back into the show, of course he will have more interaction with trainers and you're risking that another tragedy could happen. it might not be today. it might not

when tilikum is in the water, the trainers are outside of it. they're not allowed on the stage. sea world says it's building a fast rising flat bottom floor. capable to raise trainers and the whale out of the water in an emergency. they did dispatch minders to jot down our every word. the crowd loved it. matt gutman, abc news, orlando. >>> and now ahead on "world news," do you know what things on this table could help you lower a potentially harmful chemical in your body? >>> and what happened the day president reagan was shot? new details. >>> and imagine, you usually chip into the office lottery pool. except for the day your coworkers win $319 million. do you deserve a piece of the pie any way? i was young, i was in shape, and i had a heart attack. you need to do the preventative things that you need to do for your heart health. for me, it means an aspirin regimen. before you begin an aspirin regimen. speak to your doctor. i know what works differently than many other allergy medications. omnaris. omnaris, to the nose! did you know nasal symptoms like congestion can be caused

tilikum may have returned to the pool but the show has noticeable changes. bars now block the whales from the main stage, and female trainers wear their hair in tight buns. seaworld also says it's building these fast-rising, false-bottom floors, capable of lifting trainers and whales out of the water in an emergency. that's not the point, say protesters outside the park. it they say tili should not be performing. >> we wish they would have retired tili and all of the orcas to sea-side sanctuaries. these massively intelligent animals don't deserve to be living their lives in effectively what are bathtubs for you and i. >> reporter: right or wrong, his performance received thunderous applause. matt gutman, abc news, orlando. >> interesting. >>> well, it's been 30 years since the assassination attempt on but we' reagan, but we're still learning more about that day. newly released tapes say secret service agents were initially heading to the white house because they thought that reagan would be okay. they actually changed course and went to the hospital when the

tilikum is the orca that crowned trainer dawn brancheau just over a year ago. he was allowed to join other orcas in the pool today for the first time. since then he entered 5,000 visitors but trainers stayed out of the water. you may recall last year, topeka, kansas, briefly changed its name to google, part of an effort to win a contest sponsored by the internet search giant but google chose kansas city as the first to receive its ultra-fast internet service. that service is said to be 100 times faster than standard broadband. dozens of towns pulled publicity stunts to get google's attention. for kansas city, though, a simple application was all it took. up next, can foods like popsicles or jello make a child's hyperactivity worse? ,,,, >> hill: finalety, impulsive, lacking attention-- all symptoms of one of the most common behavioral disorder disorders in more than 5.5 million kids have been diagnosed with the disorder, and today an f.d.a. panel began looking into whether artificial food dyes make it worse. here's dr. jon lapook. >> reporter: back in kindergar

tilikum may have returned to the pool but the show has noticeable changes. the whales from the main stage and female trainers wore their hair in tight buns. seaworld says it's building these fast-raising false bottom floors capable of lifting whales and trainers out of the water in an emergency. that's not the point, say protesters outside the park. they say tilikum, or tili as he's known, should not be performing. >> we wish they would have makd responsible decision and retired tili and all of the orca's to seaside sanctuary. these massively intelligent animals don't deserve to live in bathtubs for you and i. >> reporter: right or wrong, his performance received thunderous applause. matt gutman, abc news, orlando. >>> well, here's one story that prompted some hot debate in our newsroom this morning. a baby is crying at a tennis match in florida, so david ferrer of spain smacked a ball into the stands right towards the infant. while the ball didn't come close but the crying did stop. he later said the crying wasn't his problem. he said his poor play was due

in about a if couple of hours, tilikum, a whale about as big as a bus, will be back here, back in the water performing at seaworld's biggest show before thousands of spectators here. controversy is just beginning. 13 months after killing his trainer, the killer whale, tilikum, will perform again. all 12,000 pounds of him. on february 24th, his last show, he used that girth to snatch trainer dawn brancheau's ponytail, dragging her to the bottom of the pool and keeping her there until she drowned, as horrified spectators watched. it was the third time the whale had been accused of killing humans. in 1991, he was involved in drowning another trainer in a canadian park. and in 1999, a homeless man snuck into seaworld after hours. he had been brought here for mostly to mate. trainers were not allowed in the water with him but did interact on the pool ledge. in a statement, seaworld said, tilikum's resuming his show is an important component of his physical, social and mental enrichment. it's not the whales but the human trainers that federal officials are worried about. accusing the compan

but what is the spectacle is tilikum's involvement in the three deaths.r, he dragged the trainer's pony neitail and drag her. the fast-rising pool floors, in an emergency, this could lift trainers to the surface in 60 seconds. the first one is slated for colleagues in june. simultaneously, they say they're working on underwater robots all to distract a rampaging whale. some of the changes are already apparent, like these steel guard rails and the buns worn by female trainers. no more ponytails. still, activists consider him dangerous. >> he's a time bomb. >> reporter: all of this just weeks before seaworld faces another hearing, the endangerment of trainers. >> and a reminder from seaworld, we'll make sure that we quote you accurately. >> oh, okay. >> reporter: george, tilikum's comeback may be cut short, we're under tornado watch today, and seaworld may cancel the shamu show today. >> a tornado watch, that sounds serious? >> reporter: yeah, our tent almost flew away a couple seconds ago. >> thanks very much. >>> when we come back, the best prom invitatio

today the whale, a 12,000-pound orca named tilikum returned to the show, got huge applause, 13 months after dragging a female trainer underwater by her ponytail before thousands of horrified spectators. the same whale has been linked to two other deaths. seaworld's statement actually said it was the whale's choice to return to work, that's chutzpah, and said whales aren't coerced into performing. they also noted new safety precautions in place there. >>> we promised a new look at an old neighbor tonight. nasa today released some incredible photographs, some of the very first closeups ever of the surface of the planet mercury as seen from the lens of the messenger spacecraft on a six and a half year tour of the inner solar system and now in mercury's orbit. just for some scale, that crater is actually 50 miles across. >>> up next here tonight, eyewitness, first-person accounts of what really happened on this day in 1981. >>> it was 30 years ago today that we heard the news the president had been shot. and of course we later learned first reports were wrong. he wasn't okay, he had been

this morning tilikum performed jumps, splashes and other acrobatics, the first time the killer whale has been seen publicly since it dragged trainer dawn bran choleinto the water in february of 2010. since then it the theme park made several changes to shamu's stadium including building barriers and preventing trainers from getting in the water with those killer whales. >> like we've never seen it before, one planet's first close-up. >> plus. >> i'm george lewis. half of the epa monitors that check radiation levels in the air aren't fully functioning. the epa says it's no big deal but here in california, where there are two nuclear plants close to fault lines, it is. see that story on "nightly news." then see how california is at ng the ante on onenab b nbce leea on nbc bay area news at 6:00. [ female announcer ] at the jcpenney appreciation sale this friday and saturday, get an extra 20% off apparel, shoes and accessories with your jcpenney rewards credit card. san rer, sale and clearance items! no exclusions! get an extra 20% off styles for her, an extra 20% off brands for him, an

. >>> killer whale tilikum returns to the show of orlando's seaworld, for the first time since killinghan a year ago. new safety measures have been put in place since the tragedy. >>> and nasa, today, releases more close-up photos of mercury, taken by the first space probe to orbit the planet. nasa scientists will also discuss what they've learned about mercury. >>> for some of you, your local news is next. >> for everyone else, all grown up. we talk to a young surfer who lost her arm. one tummy at a time. because 9 out of 10 kids don't get the fiber they need, that's why froot loops®, apple jacks® and corn pops have 3 grams of fiber in every yummy bowl. they're the cereals your kids love and the fiber their tummies love... which makes for a whole lotta happy. froot loops®, apple jacks and corn pops®, an oh-so-good source of fiber. kellogg's® makes fiber fun. an oh-so-good source of fiber. you know rheumatoid arthritis means pain. but you may not know it can also mean destruction. not just of your joints, but of the things you love to do. and the longer you live with the aching, swelli