welcome to "world news tonight." taking on trump. the reporter who interviewed that mystery voice now speaking out, saying it was a younger donald trump posing as his own spokesman. >> of course he's lying. >> what makes her so sure. breaking news the deadly bus accident near the texas border. the bus rolling on to its side. emergency crews on the scene. new details coming in right now. travel nightmares. long lines at major airports around the country. passengers reaching a breaking point. >> i hate it. i mean, i hope i get on my flight. >> how early do you have to arrive so you don't miss your flight? the mother on vacation, falling overboard during a cruise. the desperate search and why it took so long to call in the

coast guard. prom night disaster. the limo in flames. ten teenagers escaping the fire on the big night. good evening. thank you for joining us on this saturday. i'm cecilia vega. we begin with the race for the white house and the voice from the past coming back to haunt donald trump. the gop's presumptive nominee accused of posing as his own spokesperson during a phone interview. well, tonight, we're hearing from the woman on the other end of that call. at the same time, hillary clinton is on the attack, suggesting that donald trump is hiding something by refusing to release his taxes. abc's mary bruce starts us off. >> reporter: tonight, the person on the other end of this call. >> what's your name again? >> john miller. >> reporter: tells us there's no question in her mind. >> i knew right away. i knew as soon as i got off the phone it was donald. >> reporter: in 1991, sue

carswell, then a reporter for "people" magazine, conducted this interview with a person who identified himself as donald trump's spokesman, john miller. >> he's somebody that has a lot of options, and, frankly, you know he gets called by everybody. and he gets called by everybody in the book, in terms of women. >> reporter: miller bragged about trump's many girlfriends, saying even madonna wanted to date him. >> well, she called and wanted to go out with him, that i can tell you. >> reporter: take a listen to the uncanny similarities. >> that i can tell you. that i can tell you. >> reporter: no doubt the real donald trump? >> oh, no doubt. he apologized two weeks later. and said i'm sorry in print. >> reporter: carswell says trump called and admitted it was him all along. >> he said that he was sorry that he made the call, that was a joke that went awry. >> reporter: but now, trump adamantly denies it was him. >> it shows he's a liar. >> reporter: you think it shows he's a liar? >> yes, it shows he's a liar right now and that distresses me. >> reporter: this, as hillary clinton is out with a new video tonight hammering trump for

refusing to release his tax returns. >> when i run the office i'll produce my tax returns, absolutely. i can't do it until the audit is finished. >> reporter: until that audit is complete, trump says he won't reveal how much he pays in taxes. >> what is your tax rate? >> it's none of your business. you'll see it when i release. >> and cecilia, donald trump is about to receive a big financial boost from a big casino magnate who's about to contribute a substantial amount to trump's campaign. cecilia. >> mary bruce leading us off once again. and we have breaking news to tell you about from texas. reports of a deadly bus accident near the border. emergency crews on the scene outside laredo, at least eight people dead, 44 hurt. the accident happening on highway 83. the chartered bus left san juan, texas, it was on its way to a casino when it rolled over. no word on what caused that crash.

next, the growing anger at america's airports -- not just passengers, airlines, too, outraged over long lines at security. the situation so bad travelers warned to arrive three hours before their flights. tonight, the tsa is under massive pressure to fix the problem and fast. here's abc's eva pilgrim. >> reporter: tonight, frustrated passengers at the breaking point. >> there's got to be a better way. >> reporter: in denver this morning endless lines. this afternoon in baltimore travelers snaked all the way through the terminal. >> it's frustrating. >> reporter: and today, at chicago midway airport, passengers stretched clear out to the parking garage. >> i hate it. i mean, i hope i get on my flight. tsa should know better. >> reporter: we asked one passenger to track her wait at dallas lovefield. >> hopefully, we all make our flight. >> reporter: nearly an hour later she's on board in the nick of time. >> i got on nine minutes before the plane took off. >> reporter: the tsa promising change. the plan -- hire 700 new

officers by june 15th, use canine teams to speed up screenings, and ask airlines to reduce carry-on bags. abc's david kerley talking with the man tackling the problem, homeland security secretary jeh johnson. >> mr. secretary, will passengers wait three hours this summer in line? >> obviously, waiting three hours for what may be a two-hour flight is not acceptable. >> reporter: for now the only ways to get ahead in line will cost you. you can try tsa precheck for up to $100 every 5 years or see if your airline has an expedited security add-on to your ticket for an additional fee. there are some ways to plan ahead. check the wait times on the tsa app or tweet ask tsa. to find out how long the line will be. cecilia. >> planning ahead will be key this summer. now, to a desperate search for a mother missing at sea. security footage shows her falling overboard. the ship 200 miles off the coast of texas.

the coast guard contacted hours after she disappeared. abc's marci gonzalez on the race to find her. >> reporter: tonight, the coast guard scouring part of the gulf of mexico for this mother of four who went overboard from a cruise-ship. the carnival liberty was heading from galveston to cozumel at around 2:00 friday morning when the coast guard says that samantha broberg somehow fell into the water from the tenth story of the ship. officials explain her friends didn't realize she was missing until later that day and notified carnival staff. >> the announcements started coming every five minutes and we knew that somebody was missing. >> reporter: they searched the ship and surveillance video, discovering broberg's fall was caught on camera. soon after, at 5:00 friday evening, the coast guard said they were notified, a full 15 hours after she went overboard. >> because so much time had passed, it definitely makes it more difficult to find somebody

and save them. >> reporter: cases like this are extremely rare. carnival says as a safeguard they are now testing alarm systems like this. that sound when someone goes overboard. though the cruise line says those systems "have historically not been reliable." and the coast guard says they'll keep searching for broberg as long as she could still be alive. her family saying tonight they're hopeful. cecilia? >> okay, marci, thank you. the frightening ride to prom for a group of teens in massachusetts. all ten escaped when their stretched limo caught fire on their way to the big dance. the entire car went up in flames. here's abc's gloria riviera with the growing concern about limo safety. >> oh, my god! >> reporter: prom night, meant to be perfect, but this one? a near disaster. >> the car is just completely engulfed. >> reporter: just minutes before ten students from natick high school in massachusetts had been

inside that limo, when they smelled smoke. >> smoke was everywhere, so we got out and backed away and, like, two minutes later flames started flying up. >> reporter: charlie cotter telling abc news at first the driver said not to worry. but the kids, all ten, scrambling out the two rear doors just in time. the driver getting out, too. >> it was scary, i was in tears. >> reporter: limousines carry up to 14 people and routinely have only two exits. in 2013, five members of a bachelorette party died when their limo burst into flames on san francisco's bay bridge. the four women who survived escaping through the only way out -- the small opening to the driver's seat. still no word on what caused friday night's fire. students said they were lucky that the driver pulled over when he did. >> bad things would have happen. >> reporter: they made it to prom on other bus. one parent told us, the high schoolers got a good deal on the limo. he's now encouraging all

students and parents to check out the company handling transportation on prom night. cecilia. >> okay, gloria, thank you. next, a major american company taking a stand against the death penalty, pharmaceutical giant pfizer has blocked the use of its drugs for executions. more than 20 u.s. and european drug companies have already adopted similar restrictions. pfizer's decision now means fda-approved drugs are no longer allowed to be used in lethal injections overseas tonight, to an abc news exclusive. on the ground with american troops fighting isis in iraq, six people killed today there in a suicide bomb attack outside baghdad. this week alone, more than a hundred dead in a string of bombings. our team traveling into the heart of the battle zone and abc's martha raddatz takes us inside this fight. >> reporter: we arrived at the al assad airbase 150 miles west of baghdad. to meet the u.s. marines on the

fight against isis. >> it's been very very different, how we are doing it through and by the iraqi military. >> reporter: and leading the charge on the ground, these elite iraqi counterterrorism forces. their goal -- recapture mosul, iraq's second-largest city and isis' de facto capital in iraq. they train for an assault. rappel down buildings. and set off an explosion. this may be an exercise to train all these new recruits, but these counterterrorism forces have been in the fight for year. on friday, we got a firsthand view of what that fight means, driving to ramadi recaptured from isis just months ago. in the rubble, thousands of hidden bombs. >> so, martha, when you and your crew are out walking around, please do not leave any hard surface or pavement. >> reporter: despite the dangers, a small number of the families that once lived here are now returning, children make peace signs from their balcony. isis held this town for about

eight months, and finally the iraqis were able to retake it, but taking mosul back will be a much bigger challenge. back at the base, the u.s. land forces commander gary volesky explains how dire the situation in mosul is. >> people that try to leave mosul are being executed. my assessment in mosul is getting worse and worse every day. >> our thanks to martha and her team for that report. back here at home, president obama enlisting a grammy winning rapper to help tackle america's drug crisis. the president appearing with macklemore, the musician describing his own battle with pain killers. >> if i hadn't gotten the help when i needed it i definitely would not be here today and i want to help others facing the same challenges that i did. >> president obama also calling on congress to approve more than

$1 billion in funding for treatment and research. but we do want to move on to the storm threat on the move tonight. this time-lapse video showing a supercell and right there some fierce lightning strikes in oklahoma. meteorologist indra petersons joins us. it's great to have you back but you brought some bad weather with you. >> a very strong cold front pushing its way through the northeast. still actually for the potential of isolated strong storms out there. all this a sign of that cool air ushering in right behind it. in fact, you'll notice temperatures dipping down into the 30s into the upper midwest tomorrow. temperatures 20 degrees below normal for this time of year. it doesn't stay there. that air will rusher into the east. some record lows for the northeast by monday morning. even a few snow showers. >> that's not what we want to hear, indra. thank you. you probably have electronic car keys. now thieves have figured out a way to use this wireless

technology to break into cars. abc's lauren lyster talks about to a hacker. >> reporter: tonight, would-be crooks caught on camera breaking into cars without breaking a thing. in california, this alleged thief using some sort of device to unlock the car. walking away a laptop and a bike. similar incident caught on camera outside this home in seattle. so, how are they getting in? >> this is criminal's universe key fob. >> reporter: they say hackers are hacking the key fob. >> they would take this device and they plant it underneath the car. as soon as the user of the car unlock their vehicle. they have a code. when the criminal returns to the car, they can take this device, press the button and unlock the vehicle. >> reporter: it only cotts 30 bucks to make. so far it's worked on every make and model he's tried.

the insurance industry trying to tackle the growing problem as well. >> it's all over the country. there's no one exempt from it. no one is immune from it. if you've got a car and beat it with some kind of technology they're going to do it. >> reporter: right now, these alleged thieves can only break in but it's just a matter of time before hackers can start your car and drive off. when you lock your car door, hit the lock button on your key several times. that should stop a hacker's device from working. still ahead -- new york city takes the fight against zika to the air and the street racing crash caught on camera and the witness who raced in and pulled the driver for speed. i feel the need -- >> the need for speed. >> oh, yeah, the anniversary of a classic. you'll need your aviator glasses when we come back.

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next tonight, the real-life "fast and furious." police around the country cracking down if they can catch up on street races before they take a deadly turn. here's abc's clayton sandell with one fiery crash and the heroic rescue caught on camera. >> reporter: seconds after this rollover crash in riverside, california, the car already on fire. >> bro! hey, great out! >> reporter: the good samaritan realizes the driver is still inside. quickly pulling him to safety. >> call 911! call 911! >> reporter: a moment that never had to happen because, police say, this driver was street racing not just fast and furious, street racing is deadly. in the last decade more than 124 drivers, passengers and bystanders killed. in los angeles, this chain-reaction wreck last february killed three innocent drivers. the street racers weren't hurt.

days later, another crash caught on camera, killed two pedestrians. police everywhere are now cracking down in portland oregon. and the car capital of southern california, where nearly 50 people were recently busted, their cars impounded. >> it comes down to ego, i want to show off. i want to do something that is going to give me a thrill. >> it could be deadly. >> exactly. >> reporter: clayton sandell. still ahead on "world news tonight" -- a fast-food empire puts a new ingredient to the test, you might have thought it was already on the menu. plus, a hiker stranded on a cliff. firefighters rushing in for the rescue, the tools they handed her to bring her to safety. but i keep it growing by making every dollar count. that's why i have the spark cash card from capital one. i earn unlimited 2% cash back on everything i buy for my studio.

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get a free sample at depend.com. finally tonight, the family dog that jumped into action to save a little girl from a rattlesnake. haus the german shepherd risking his life and, as abc's ron claiborne tells us, so many jumping into action to return the favor. >> reporter: 7-year-old molly deluca and her family dog haus are inseparable. that bond may have saved her life. last wednesday, molly was out in the backyard with haus. the dog came into contact with a highly poisonous rattlesnake, le leapt into action. >> they jumped back and go forward. he was holding his ground. next thing we know there's blood and he was limping and crying. >> reporter: the rattler bit haus three times in the leg but he never got to the little girl. haus was rushed to a vet clinic. >> hi, baby.

>> reporter: where he underwent emergency treatment with an anti-venom. for the past four days it's been touch and go. >> you want some water? >> reporter: and through it all, molly has been there by his side. the treatment haus is getting is intensive and expensive. over $9,000 so far. to cover the cost the family set up a gofundme site. money came pouring in, more than $50,000 so far. the delucas said they don't need any more donations. haus is getting better every day. he's getting the best of care and a large dose of love from one little girl. ron claiborne, abc news, new york. >> the best kind of care there is. have a great saturday. "good morning america" and "this week" in the morning. i'm cecilia vega. good night.

>> i'm karen rogers. >> and i'm alicia vitarelli. saturday/tonight on fyi philly. >> we check out the doings in downtown conshohocken. >> we head back to disney world for shopping, dining and fun at the new disney springs. >> we try on some jeans being handcrafted right here in philly. >> and we're getting ready for the devon horse show. >> hi everyone and welcome to fyi philly. >> we're at edwards-freeman nut company in conshohocken and we are literally like kids in a candy shop. and bonus. a candy and nut shop. >> it's just one of the many places here in conshohocken that make this town worth the trip. >> in here there is a taste of everyone's childhood >> absolutely. >> the edwards-freeman nut company started as a peanut factory in 1899 and by 1930, it had expanded into a candy