this is "nightline." >> tonight, robbery in rio. gold medal winner ryan lochte and teammates held up at gun point. thieves posing as police officers. with a violent drug war raging minutes away from the olympic village -- >> they come with guns you respond to them with guns. >> we're on the front lines with brazil's s.w.a.t. team and bomb squad. can they keep the athletes safe? plus, shanghai disney. the brand-new theme park has had a million guests since opening day. and hopes are sky high. with an enchanted castle towering above the rest we're behind the scenes on disney's most ambitious fairy tale yet. and selena gomez speaking out over an instagram post by

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concern tonight over the safety of athletes in brazil after olympians including gold medallist ryan lochte were held up at gun point. we journey into some of rio's most dangerous neighborhoods with a brazilian s.w.a.t. team where a violent drug war is raging minutes away from olympic village. how are they keeping violence from creeping into the summer games? here's abc's matt gutman. >> reporter: we're on the front lines on the streets of rio. here with sweeping views of olympic venues where compete for gold, police are embroiled in a complex and bloody war with the gangs that dominate rio's slums, some of them long-time criminals, some of them dirty ex-cops. their latest victim may have been their most high-profile, gold medallist ryan lochte, one of the winningest olympians in history. he and three fellow team usa swim members had been here at club france, one of the many

committees. lochte snapchatting with snowboarding great shaun white. but early in the morning on their way back to olympic village, men in police uniforms lochte says flashing badges, pulling them over. lochte told the "today" show the men demanded the swimmers get on the ground before pulling out a gun. >> i refumesed. i refused. i was like, we didn't do anything wrong so i'm not getting down on the ground. then the guy pulled out his gun, he forehead, get down. i watt my hands up, like whatever. >> reporter: he said their assailants took only their money and the athletes were unharmed. team captain michael phelps shocked we the news. >> kind of said, excuse me? i mean, i -- i couldn't believe it. >> reporter: but similar incidents occur almost daily here. rocks hitting an olympic bus. stray bullets hitting the equestrian venue twice. a judo medal winner mugged.

giant vat of violence brazilian authorities are struggling to contain. this month five people on average have been wounded by gunfire each day in rio. just last week, three olympic officers were shot, one of them killed, after taking a wrong turn into gang territory. the deputy commander of rio's s.w.a.t. team offered to give us a sense of what they're up against. >> if something happened, stay inside the car, okay? >> reporter: hillside overlooking the olympic village. it's home to massive ?shanty towns where one-fifth of rio's population lives in communities known as favelas. police are engaged in what they call an undeclared civil war. just last year this s.w.a.t. team conducted 3,000 operations in the favelas. the s.w.a.t. team's training custom-tailored to the

patrol. it's nearly impossible to be fully prepared for the threats that await them out in the real world. everybody wears this when they go out? >> yeah. >> everybody? >> yeah, everybody. >> how often are people killed in the slums in the favelas here? >> every day. >> how often do you think that you get involved in a fight? >> 100%. >> 100% of the time you go inside a favela -- >> yeah, >> there's going to be something? >> the fight will be started. >> reporter: it's these winding alleyways that police say make fighting the gangs especially difficult. >> look how narrow these alleyways are. police say they're perfect spots for ambushes. >> reporter: on the other side of the battle lines, the drug dealers. one agreed to be interviewed as long as we didn't show his face. looking me in the eye he said he

a choice to kill. he says he was only 20 when he committed his first murder. >> because it was kill or be killed? [ speaking foreign language ] >> reporter: as he spoke he smoked a joint. >> because life is not easy, yeah? it's the way to make money. to die or to kill here. to kill or to die. it's better for them to see their moms crying. >> you're saying it's bet other mothers crying than to have your mother cry? [ speaking foreign language ] >> when you see police coming into this favela what do you typically do? >> most of the time it become no problem. >> i see. they come with guns, you respond to them with guns? >> yeah. [ speaking foreign language ] >> fire with fire. >> fire with fire?

call this war pacification. and have been ramping up their presence here in preparation for the olympic games. "nightline" coanchor dan harris was here in 2013 coming face-to-face with a dangerous drug lord. >> the police have been going into neighborhood and pacifying them. if they came here and tried to do that, what would happen? [ spea >> would you describe your work as dangerous? >> he says, do you know me? >> no. >> reporter: despite all the violence, police say they've only managed to pacify about 30

violent crime since 2012. still in an olympics that has been racked with safety concerns, the games have been a far cry from the projected worst case scenarios. partly due to the diligence of the security teams here. the rio bomb squad here responding to calls every day, using robots to detonate suspicious packages. so far, all false alarms. but the threat is very real. >> wow. >> this is our warehouse. >> reporter: the team explosives each year. >> this is live ammunition? >> yeah, yeah, unfortunately it is. >> all right. put that back down. >> reporter: many explosives from gangs in the favelas. >> basically every day this is what comes in, little bombs like this, grenades? >> yes, yes. >> reporter: authorities are still investigating who mugged ryan lochte and his teammates but brazilian police sate athletes were too drunk from the party to provide a lot of information regarding criminals, cars, license plates, et cetera.

incident even took place. >> i wonder if you can explain to us what happened? >> what i said was people asked me to give them update, i got an update, i gave you usoc's update, then there was another one after that. >> reporter: lochte is being bundled back to the u.s. replying in a statement, what is most important is that we are safe and unharmed. teammate gunner bents adding, the gold medal is safe. rio organizers issuing an violence has gotten so close to athletes, we apologize to those involved. their focus now, making sure ret maining events go off without incident. and that over 10,000 athletes in attendance are secure. although officials tell us taking a taxi while reportedly drunk at 4:00 a.m. may not be the best idea in the most violent city to host an olympics in modern times. for "nightline" i'm matt gutman in rio de janeiro, brazil.

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you know, it may be the year of the monkey on the chinese calendar but it's starting to feel like the year of the mouse. shanghai disney, the company's most-expensive overseas investment yet, is now open with new attraction is you won't see at any other disney theme park.

>> reporter: 50,000 hours of construction. 100,000 workers from engineers to imagineers. perhaps a sprinkle of pixie dust. this is shanghai disney resort. the newest happiest place on earth opening its gates to the public for the very first time just two months ago. >> here east meets west. the past meets the future. and anything is possible for those who believe. million guests and counting. it's the sixth resort for abc's parent company. the project taking five years to complete with a $5.5 billion price tag. >> i'm in the center of this resort, the enchanted storybook castles. it will be the tallest and biggest castle in all of disney. the transformation incredible. this is the most grand of all

12,000 trees planted. stunning. >> get the show on the road! >> reporter: i got a behind the scenes first look at what disney hopes will be its grandest fairy tale yet. once upon a time, after over a decade stalled in negotiations with the chinese government, disney broke ground in april 2011. >> disney only owns 43% of the park. the rest is kind of controlled by shanghai shandy group, locally government-contrle entity. disney will have to work very closely with its partners on that. it doesn't have outright editorial control. >> reporter: this would become the largest and most expensive international resort for the disney brand, spanning nearly 1,000 acres in shanghai. the location within three hours by car or train of 330 million people. in a country with a booming middle class with more and more disposable income. >> if they get even just a fraction of those 300 million

disney's parks and resorts segment revenue. >> reporter: but as with all fairy tales the stakes are high. >> they spent five years building it. many more in negotiations. that alone makes this a huge, huge expense both human and dollar-wise for disney. that means there's an incredible amount at stake. >> reporter: to find out how much i'm getting a tour from jody mclaughlin, one of disney's imagineers. >> the entire team was encouraged to be daring and take risks. >> reporter: the goal of the park she says, to push the boundaries. >> this is something we've never done in a disney park. to have something this physically active. >> do you like this one? >> i love it, i think it's great. >> reporter: here on the first-ever adventure isle, camp controversy is a disney trail blazer. >> this is awesome! >> reporter: literally. you get to blaze your own trail through treacherous terrain. >> i think i got the wrong shoes on. >> so do i.

can be really advanced, you can be intermediate, you can be a beginner. something for everybody. >> reporter: always something to marvel. >> look up at this mountain, that thing's more than 100 feet tall. >> reporter: we head to the pirates of the kririan. >> this is more of a storytelling. more historical facts for people to learn. >> yes, yes. certainly fans of captain jack sparrow and davey jones, you meet them in the attraction. it's a very immersive experience, very strong literally in the attraction you become part of that story. >> reporter: the attraction, combining the action-packed narrative from the movie -- >> that is the best! >> reporter: with come to life characters and detailed design -- >> that was awesome, thank you. >> reporter: we can't forget the gift shop. the revenue streams seemingly endless. >> getting people into parks is a way for them to make far more money off people's love for these films. you can bet every kid will be

them to buy a pirates of the caribbean toy. the huge potential for merchandising dollars, food dollars, actual theme park dollars. ? heigh ho ? >> reporter: although the stories are classically disney, there is of course the chinese twist. like with snow white's dwarfs. off to work they go. this time in mandarin. ? >> it's about bridging the culture and help understand what the chinese guests want and what is the culture. >> reporter: she's the cultural analyst for shanghai disneyland. >> what's the difference between american and chinese in terms what they want to see at disneyland? >> for me, for my understanding, because american has such a history. we know the stories so well. grew up with it. for us we know mickey and minnie. it's hard for us because we don't know the characters.

wandering moon teahouse which celebrates the diverse landscapes of china. >> we're entering the forest room. it's really inspired by southeast china where you have a lot of bamboo forest. definitely our team is inspired by that. >> reporter: that pride making this park entirely unique. and that may just be the key to a fairy tale ending. for "nightline," i'm bob woodruff in shanghai, china. next, you won't believe what justin bieber and selena gomez are fighting about now on instagram. why selena is trying to kill them with kindness. ? kill them with kindness ? viagra single packs... so guys with ed can...

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selena gomez want keep her hands or thoughts to herself, the teen idol publicly feuding with ex-boyfriend justin bieber

>> if you thought the drama between justin bieber and selena gomez was so 2014, you're so wrong. after posting a series of flirty images with different women, including 17-year-old model sofia ritchie, daughter of lionel richie, beliebers revolted flooding his instagram with angry comments. ? i made those mistakes ? >> the sorry singer sent this message. i'm going to make my instagram private if the hate. if you guys are really fans you wouldn't be so mean to people that i like. ? kill them with kindness ? >> and while gomez's recent single "kill them with kindness" preaches rising above the 24-year-old singer couldn't keep her hands to herself. chiming in, if you can't handle the hate, then stop posting pictures of your girlfriend, lol. don't be mad at your fans, they love you.

quickly deleted but it was too late. the what do you mean crooner allegedly unleashing his wrath against his ex-girlfriend on social media. it's funny to see people that used me for attention and still try to point the finger this way, sad. all love. gomez reportedly firing back. funny how the ones that cheated multiple times are pointing the finger at the one that were forgiving and supporter, no wonder fans are mad. sad, all love. bieber had the petty feud in a new direction allegedly reply, i cheated? i forgot about you and zayn. ? ? is it to late to say sorry ? >> it might be. although they say love means never having to say you're sorry. thanks for watching abc news. as always we're online at abcnews.com and our "nightline" facebook page.

>> today on "fablife"... ? >> bring forth the manservants. >> yeah! >> it's our queen for a day special. >> former miss georgia, kim gravel. >> had to put on my best girdle, my best push-up bra. >> oh, so did i, so we're all good. beauty queen fashion tricks. >> this is your foot. this little piggy went to market. these two little piggies are gonna get taped up. it will just relieve the pressure. >> are you serious?