this this morning on "world news now." president obama and cuban leader raul castro at a state dinner behind closed doors. what the president told david muir and why dissidents are speaking out as history is made. reaching out. donald trump and political challengers addressing an influential american group concerned about foreign policy as voters in three states go to the polls today. the scare on a busy college campus. first responders taking no chances after an explosion. who got hurt and who's trying to solve this mystery. all the talent on the stage as the new "dancing with the stars" begins fancy moves from our favorite contestant and competitors who could be a big challenge to her. that's in "the skinny"

we're already discussing "dancing with the stars." you love ginger but we're biased. >> yeah, yeah, we have a conflict of interest. there was a contestant who is amazing. >> absolutely amazing. >> i mean you would have never had any idea he was deaf. >> beyond concentrating on his six-pack abs. his moves were pretty good. >> he won "america's top model" too. >> absolutely. shall we switch beers? the president in cuba, he has another busy day ahead of him. the homes ended monday in havana as guests of honor at a state dinner hosted by president castro. >> a traditional court dish with rice, traditional cuban music and famous cuban cigars. earlier president obama and

castro held a joint news conference where they disagreed about human rights in cuba. castro denied any knowledge of political prilsers in in his country and told a reporter to give him a list of those being held. and they would be released. >> a bit of an awkward moment when castro held the president's arm up, it went limp. >> a little limp. >> odd. abc's david muir spoke exclusively with president obama about his cuban visit and politics here at home. >> you have said that you would speak candidly with president castro about the serious differences you have with the cuban government. >> what i indicated to him is we can't force changes on cuba. but what we can do and will continue to do is to stand up for the rights that we consider to be universal. >> with so many americans back home asking this, which is what's the bottom line here on tourism in cuba? >> i think it's going to be happening very soon. we now have an agreement where cruise lines can travel from the

united states directly to havana. we have now direct u.s. flights to cuba which will make it much easier to travel. >> i wanted to ask you about the political climate back home because it's back in the news again. you're aware that donald trump has predicted riots. if the republican party tries to stop him, if there's a contested convention saying, i think you'd have riots, i'm representing many millions of people. >> this is an issue the republican party is going to have to work through. there's an expectation that our leaders will not trumpet violence or justify it. there's an expectation that those who run for the highest office seek to represent everyone and not just some or appeal to an us verses a them. >> today the president's historic speech to the cuban people and the big baseball game, the take rays are here in havana. david muir, abc news, havana,

the issue of political prisoners remains a sensitive one between president obama and cuba's leader. dozens of human rights demonstrators were arrested before the president's arrival in havana. abc's jonathan karl in cuba spoke to some of those protesters. >> reporter: at their extraordinary press conference in havana, president obama and cuban president raul castro sparred over human rights. president castro denied that cuba has any political prisoners whatsoever. but just sunday, 50 demonstrators were arrested, most of them women, as they tried to hold a silent protest just about three miles from this spot. and i met on the outskirts of havana with a group of three cuban dissidents who will all be meeting with president obama. they told me that cuba, the human rights situation here has actually gotten worse. in fact, they showed me a list of 304 people who have been arrested just over the past few days. all around cuba. about 104 of them in the havana area all in advance o

president's trip. they told me they look forward to meeting with president obama, a hugely important symbolic meeting because they will take photos of that meeting, they'll want to distribute those photos and say they send a message to other political dissidents in this country that they are not alone. their message, they tell me, to president obama is a simple one -- they want him to keep the pressure on the cuban government. jonathan karl, abc news, havana. in the race for the white house donald trump spent the day in washington mostly speaking about foreign policy. in an address to a pro-israel group, trump tried to roll back concerns about a previous statement he made in which he said he'd try to stay neutral in israeli/palestinian conflict. trump yesterday called himself a true friend of israel and he blasted the nuclear deal made with iran. >> iran is a very big problem and will continue to be. but if i'm not elected president, i know how to deal with trouble. and believe me, that's why i'm going to be

folks. >> when ted cruz addressed the group he criticized trump's use of the term "palestine" which cruz said hasn't existed since 1948. john kasich took issue with trump for his neutral comments saying the u.s. cannot be neutral in defending its allies. hillary clinton took shots as well at trump during her speech to that pro-israel group before flying west ahead of today's three nominating contests. at her event in phoenix clinton call for a big turnout in today's arizona primary. there are also democratic caucuses today in idaho and utah. and it was in salt lake city that bernie sanders delivered a substantive foreign policy speech. he said peace in the middle east means security for every israeli and civil rights and economic opportunities for the palestinians. sande erers declined an invitat to address the same pro-israel group his opponents did in washington. and a female employee was seriously injured in an explosion at a

in georgia. the food service worker suffered burns and blast injuries. she's expected to survive. officials say it may have been a buildup of methane in a sewer line. georgia gwinnett college that was responsible. firefighters were already on the lawrenceville campus responding to a fire alarm and were about to leave when the explosion occurred. >> there's nothing that leads us to believe it may be suspicious but again, it is currently under investigation. >> i think the language that they used in the text alerts really helped to keep the campus calm. >> no students were injured. the building will be closed today but classes are in session elsewhere. a health warning in the meantime for people who take more than one prescription drug or supplement. a new study finds that one in seven adulls are on medications that can be harmful when taken together. the finding is especially troubling since prescription and nonprescription drug use is on the rise. bottom line, tell your doctor about all drugs, sup

and herbal remedies you use. drivers are getting pinched at the pump. the average price for a gallon is just under $2 a gallon, the first time prices have been this high all year. that's up 5 cents from last week and up 17 cents from a month ago. analysts say demand is up and production is down. but prices are far cheaper than they were a year ago. so just days after two starbucks customers filed suit saying the chain routinely shorts its beverages starbucks is offering a new springtime drink. the caramelized honey latte is like the weather this year -- it can be hot or cold. or like a katy perry song. or in a frappuccino. it goes on sale today for a limited time. there are also other seasonal drinks and a new southwest style state cup. we're getting our first look this morning at the world's largest air graph. it is called the air

it's part plane, it's part airship. it's been fully assembled at a hangar in rural england. just over 300 feet long and holds 1 million cubic feet of helium. >> oh the humanity. it looks really deformed. the hybrid craft is expected to take a test flight over england this summer. >> oh, come on. that is just an offensive photo. >> you took your mind there. as you can imagine, its rather unusual appearance has caused a stir online with the unfortunate resemblance to the human backside. >> i don't know what we can say. >> very kardashian-esque of us. coming up in "the skinny." marla to geraldo to ginger zee, who's your favorite as the new season did begins? the diet challenge playing out on social media. could this woman's weight loss be her fans' biggest gain? and challenges for apple rolling outew

battling with the government over privacy. that's after today's forecast map. a new storm moving into the northwest. you're watching "world news now." >> announcer: "world news now" weather, brought to you by united health care. ♪ approaching medicare eligibility? you may think you can put off checking out your medicare options until you're sixty-five, but now is a good time to get the ball rolling. keep in mind, medicare only covers about eighty percent of part b medical costs. the rest is up to you. that's where aarp medicare supplement insurance plans insured by unitedhealthcare insurance company come in. like all standardized medicare supplement insurance plans, they could help pay some of what medicare doesn't, saving you in out-of-pocket medical costs. you've learned that taking informed steps

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the government says it may not need apple's help to unlock an iphone owned by one of the san bernardino terrorists. >> for its part, apple let off a product unveiling with a promise to stand firm against the government. abc's neal karlinsky has the story. >> reporter: apple's tim cook began with what is perhaps his famous company's biggest product, its image, in the midst of a battle with the u.s. government. >> we need to decide as a nation how much power the government should have over our data, over our privacy. >> reporter: and a bombshell from the government postponing today's hearing, writing the court they may have found a way to crack apple's iphone security without the company's help. it is an uncomfortable position for america's most valuable company which launched its latest new phone, dubbed the iphone se. this is the newest iphone, the se. the first thing you'll notice, it looks like the old iphone 5s. it's a lot smaller. this is my current iphone 6. you can see the difference.

the new phone is a lot like older iphones in look and feel, but with better cameras, faster speeds and, again, better security. and all those old phones are worth serious cash. a site called flipsy claims to look at all of the offers for your used phone and find the best option. our iphone 6 in decent shape fetched anywhere from $40 to all the way up to $330. but you better do it fast. the price drops as soon as a new phone comes out, so the clock is ticking. neal karlinsky, abc news, cupertino, california. coming up, all the highlights from last night's whirlwind premiere of "dancing with the stars." >> "the skinny" is next. >> announcer: "world news now" continues after this from our abc stations.

♪ all right. leading us off in "the skinny," yes, get in the mood. the ballroom blitz, "dancing with the stars." >> shall we dance? >> no, spare you that. >> have a conniption. >> kicking off season number 22. >> and the competition looks stiff with some of the highest opening-round scores ever seen. >> yeah, the show kicked off with a big group number but 12 couples to get through, it was time for the fantasy footwork. >> notable performances, marla maples wowing the ballroom with

dovolani. she's 52 years old. she's a former mrs. trump and actress. she earned an impressive 21 out of 30. >> she was pretty good. right after her, a big splash made by boys 2 men singer wanye morris dancing the cha cha to the group's first hit "motown philly." both the judges and the crowd loved it earning him the highest scores of the evening establishing himself as a dancing force to be reckoned with. >> very good. but not too fast there. abc chief meteorologist ginger zee our own abc contestant took her turn next. boy, did she turn and dip and spin and flip. ginger's jive with val tied her at the top of the leaderboard with a score of 23. judge len goodman called her routine frisky, fast and furious. >> all of that. len wasn't as kind in his critique of mischa barton.

after taking a year off from the ballroom, he got right back in the swing of things making it awkward while judging her rather stiff tango. >> it's not in my nature to be nasty but that wasn't a dance. that was walking. it was just -- you were just walking. >> well, i can't tell a lie, it is what it is. >> len's brutal honesty rallied the crowd to the side of clearly dejected barton. but it wasn't enough earning her a mee a measly 16 out of 30. >> some tears. if you're waiting for the worst dance of the night, it wasn't mischa barton. it's geraldo rivera. just walking around. they brought in the backup dancers to distract from his moves. all right. so at 72, we have to give him points. he is the oldest competitor by far. okay?

shot. if he wants to survive, he has to dig a little deeper. >> yeah, he earn ed -- he's actually correct, he's the only puerto rican who can't dance. he earned the lowest score of the night. a very sad 13. an apparently al capone's vault was also missing rhythm. good one, brian. >> because they came out of al capone's vault because i guess geraldo reported there once. >> yes. >> right? >> some old folks would know that. >> elimination in episode 2 next monday night at 8:00 p.m. by geraldo. >> we have one more. can we do this one? this was incredible. this contestant is deaf. he is nyle dimarco. he was incredible. he was also, he won "america's next top model." he didn't look bad either. he dances perfectly to the beat with his partner peta. he tied at the top with ginger

and wanye with 23. >> he can't hear the song. >> isn't that incredible? >> great start. >> okay. i'm sad to move on but let's get to this. so billionaire tech titan elon musk and his second wife talulah riley are calling it quits again. musk is the founder of spacex and tesla motors and riley is an actress. they filed for divorce yesterday but this is the second time. >> the two first married in 2010, got divorced two years later and remarried in 2013 but almost split at the beginning of 2015. >> now it appears to be over. but you know, hey. third time's the charm. musk has five children with his first wife, none with riley. she will be seeking spousal support, but no word on any pre-nup agreement as of now. next, a rihanna fan getting the performance opportunity of a lifetime. >> this is great. she dragged the guy up on stage here and then did an impromptu duet. listen really quickly. ♪ >> what?

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k-y touch. ♪ no butter, no jelly, ♪ breakfast no coffee no butter, no jelly, no jam ♪ ♪ lunch just some lettuce two celery stalks, no potatoes no ham ♪ >> we're digging the bottom of the music practitioner again. >> i think it was supposed to have meaning, it was about dieting. >> okay. that's what it is. finally, yes, the story of a woman using the power of social media to shed a lot of weight and sharing her struggles, tips and a lot of tricks with all of her online followers. >> millions have seen her accomplishments. abc's deborah roberts has a story of guts and determination. >> reporter: 26-year-old ariel calderone is social media's shrinking star dropping a whopping 85 pounds over the last year. sweet success after a lifelong struggle with yo-yo diets.

>> i would limit myself to about 400 calories a day and burn off more than 1,000 a day. but i gained back because i was so deprived. >> reporter: this millennial has learned slow, steady weight loss is the answer and apps make it easier. like plant nanny, where her online plant dies if she's not drinking enough water. she tracks her activity on her apple watch and focuses on food choices through weight watchers, also online. this buzzfeed director shares her weight loss joys and struggles with her online community. >> a couple months in you had a setback. >> it was on a subway train. the man offered to give me a seat. i thought it was because i was holding a lot of stuff. then he said, yeah, you should sit because you're pregnant. >> reporter: raw honesty that set her instagram account on fire. going from 115 followers to more than 51,000. some saying i'm very motivated especially after hearing i'm not alone with my struggles and you've quickly become one of my

heroes. a hero who now takes the stairs instead of the elevator. stands instead of sitting -- >> i'm always looking for the healthier option. >> reporter: now opts for a small salad during a company lunch. >> food and nutrition in your 20s informs the latter part of your life. it helps reduce your ring of diet-related chronic illnesses when you make healthy food choices. >> what are the top three things you've learned? >> one is to educate yourself. do your research. another tip i would say is preparing your own food. number three is to focus on small goals and nonscale victories. we focus so much on the scale. if you didn't lose weight this week you failed. it's us a like, well, i ran a mile in ten minutes this week. or it's like, the airplane seat belt fits on me now. >> deborah roberts, abc news, new york. >> incredible before and after photos. good for her. inspirational. >> she's at 95 pounds right now. that's what she says on her instagram. >> whoa. teeny tiny. >> really

>> announcer: this is an abc news special report. good morning, everyone. i'm kendis gibson at abc news headquarters in new york city. >> and i'm lauren lyster. we're interrupting program with this breaking news coming in literally right now from belgium, brussels where the airport, the international airport there in brussels has been shaken by at least two explosions. reports say one of the blasts took place near the american airlines check-in desk and authorities say there was one dead, at least right now and several wounded. >> smoke can be seen rising from one of the terminals and we have abc's own alex marquardt who is there or on the way there to the airport on the phone.