And the number of great whites swimming in one of americas most popular tourist spots. The new warning this summer. And good evening. Im tom llamas in for david, and we begin with that breaking news tonight. The severe tornado threat as we come on the air. Six states on alert, and the images are just coming in. This tornado touching down in stewart, iowa in the center of the state. Dark clouds covering the sky. Take a look. This twister forms in southwest iowa. Tornado sirens blaring, giving warning that were getting reports of intense damage already. Abcs senior meteorologist, rob marciano starts us off tonight. We have been under enhanced risk all day, but the storms have exploded in the last hour or two. The dangers unfolding. South of des moines, west of i45, and just east of minneapolis. We have seen severe storms that have brought some damage across Pierce County as you mentioned. These tornado watches are up until 12ik tonight. From lincoln to kansas city, and chicago and detroit. We stretch out the area, but damaging winds, and scattered hail. You. The next three to four hours, folks in the sform zone need to be aoi letter. Rob, thank you. Next to trumps new promise on health care as republican senators scramble to regroup after the collapse of their plan. With the chicago cubs at the white house today, President Trump saying a Health Care Package is koopg, and a quote, great surprise. It comes from florida to the hams of the capitol. Could the republicans come up with a new plan before leaving for the 4th of july break . Abcs chief white house correspondent, Jonathan Karl, starts us off from the white house. Reporter President Trump today predicted a surprise victory for the stalled Republican Health care bill. Health care is working along very well. Youre going to have a great surprise, with a great healthcare package. Reporter at this point, victory would be a big surprise, not only are all democrats opposed. So are no fewer than nine senate republicans. And on capitol hill, more protests. At least 40 arrested today. Dont kill me reporter the Republican Opposition falls into two camps, conservatives who say the bill doesnt do enough to repeal obamacare. And moderates who are concerned the bill goes too far, slashing medicaid, which the candidate donald trump had promised not to cut. Mr. President , any concern about the medicaid cuts in the healthcare bill . Its going to be great, its going to be great for everyone. Reporter the president isnt negotiating the specifics, but he is now acting as chief cheerleader for the bill. Yesterday he met with 46 republican senators. President trump, i challenge you to invite us, all 100 of us, republican and democrat to blair house to discuss a new bipartisan way forward. On health care. Reporter we took that to the president. Would you be willing to negotiate with all of them . Gotta find out if hes serious. He hasnt been serious. Hed have to be very, very serious. He has done a lot of talking, a lot of bad talking. He just doesnt seem like a serious person. All right, Jonathan Karl joins us from the white house now. And jon, President Trump is predicting a big surprise on health care. Senate leaders are hoping to have a revised version of the bill by the end of the week, but is that time line possible . Reporter its going to be a heavy lift, tom, but they have to get it done by the end of the week so the Congressional Budget Office can complete its assessment in time to have a vote after they return from their july 4th recess, and they know that more time will not make it any easier to pass this bill. The clock is ticking. All right, jon. Thank you. Next tonight, the danger in the air. The department of Homeland Security demanding airlines around the world tighten security on all flights into the u. S. Or risk an electronic span. The measures affecting thousands of flights every day. Our transportation correspondent, david kerley, with the details. Reporter jetliners headed to america are the crown jewel target for terrorists according to the head of Homeland Security who tonight is announcing strict new requirements to fly to the u. S. It is time that we raise the global baseline of aviation security. We cannot play international whackamole with each new threat. Reporter the u. S. Is now setting what it calls a new global standard for airport screening worried about explosives being placed in Electronic Devices larger than a phone. The new directives affecting every flight, every airline, coming into the u. S. That covers 280 airports, 180 airlines, 2,000 flights and 325,000 passengers a day. Passengers will see more k9 units, more swabbing and these machines. Which can show contents of a bag in 3did. This means the laptop ban will not be expanded if Airlines Follow what dhs calls raising the bar of security around the world. They have used the current threat environment, and concerns being raised by air carriers about a laptop ban can put in Stronger Security measures. Our Senior Transportation correspondent, david kerley joins us live inside reagan airport tonight. And david, big changes coming for all those travelers flying to the u. S. When will this be rolled out, and what about that laptop ban . When will that be lifted . Reporter its being ruled out over the next couple of weeks for the requirements and a couple of months for the rest. As far as the laptop ban, if the Airlines Flying from those eight countries meet these two standards, the ban will be lifted, tom. David kerley with that new travel plan tonight. David, thank you. Next to the extreme fire danger after weeks of recordbreaking heat. 40 major fires burning tonight. Nearly doubling in 24 hours. The Fastest Growing in arizona. 28 square miles. Just 1 contained. Thousands of firefighters putting their lives on the line. Abcs phillip mena is at the scene. Reporter tonight, the goodwin fire near prescott, arizona. Quad rup. Ling in size. Ground teams fighting the blaze had to be pulled back at one point. Were not going to put firefighers in danger. Reporter this fire in the same area where 19 elite hotshots lost their lives fighting a blaze four years ago. Wed ask you all guys to leave. Reporter now forcing the entire town of mayer to evacuate. Thats very upsetting. We moved here about three years ago, bought a beautiful home. Reporter wildfires now in 11 states. The largest, the Brian Head Fire in southern utah, destroying more than a dozen structures. A 911 call revealing the fires first moments. Were trying to fight this, but its getting out of control. Reporter our matt gutman on the scene as it grew to nearly three times the size of manhattan. It acted like gasoline on that fire, and moved 100 yards in the last five minutes, sending that column of smoke. We saw it from 20 miles away. There he goes p making that drop. Reporter a rapid aerial assault saving many homes near san bernardino, california. Gad bless them all. They saved our home. Reporter this woman and her grandchildren returning home after evacuations lifted there. You can see the smoke covering the town of dewy, but the winds have died down here, and that is a good thing. Some of this brush hasnt been burned in 40 years. That is a lot of fuel. This fire is expected to keep burning and growing for weeks, tom. For weeks. All right, phillip. Thanks so much. Next tonight to the fbis investigation of Kaspersky Lab. A russianbased Cybersecurity Company whose software is used in american businesses, government and maybe even your home. The agency is questioning some of its employees. Abc news was the first to report weeks ago that the fbi is investigating the companys potential ties to the kremlin, worried that its software could be used to spy on americans. Abcs senior justice correspondent, pierre thomas, with the latest developments. Reporter tonight, thousands of miles away from its moscow headquarters, the Computer SoftwareCompany Kaspersky lab is under i increasing pressure from the fbi. Last night near washington and boston, sources say fbi agents went knocking on the doors of as many as a dozen kaspersky employees, pressing them for information about how the company operates, and any potential ties to the russian government. Kasperskys Antivirus Software is sold at target and best buy to 400 million customers world wide. Ive got it covered. We switched to kapersky. Reporter but now sources tell abc news top u. S. Officials are increasingly concerned russian spies could try to use that software to attack critical american infrastructure or snoop on american customer. At a recent senate hearing, a stark assessment from the head of the fbi and director of national intelligence. Were very concerned about it, sir, and were focused on it closely. Would any of you be comfortable with Kaspersky Lab software on your computers . A resounding no from me. Reporter at least three kaspersky executives have past ties to the kgb or russian military. The companys ceo Eugene Kaspersky photographed with Vladimir Putin back in 2015. Speaking with us exclusively from moscow recently, they rent any claim that its company is would allow itself to be a tool of the russian government. If they asked you to spy on americans, if they asked you to spy on government agencies, your response would be what . My response if im asked to spy on anyone coming from any state, any government, not only russian, will be definitely, no. A very clear statement there. Pierre thomas joins us from washington, and pierre, the ceo insists the lab is not working with the russians, but at the top levels of the u. S. Government, there is real concern. Reporter thats right, tom. Both the department of Homeland Security and the Senate Intelligence committee have issued secret memos expressing concern about the russian footprint here in the u. S. , the tom. Pierre, thank you. Next to some incredible video. A closeup look at a shootout on a city bus. A robbery suspect making a getaway. Then firing on police when they close in on him. Tonight, we are seeing new video from inside the bus and of the passengers running for their lives. Heres abcs eva pilgrim. Reporter tonight, new video showing the terrifying shootout inside a crowded Baltimore City bus. [ gunfire ] the gunman firing at cops rushing the scene using both hands. Armed with two 40 caliber handguns and several magazines of ammo. Baltimore county police say earlier this month blaine erb tried robbing two people before getting on that bus. When police pulled the bus over, erb reacted. In the middle of the gunfire, passengers frantically running, one wounded in the crossfire. Officer down. Officer down. Shot. Reporter an officer also shot. This body cam video shows them using cars as shields. This was like watching a horror movie in my backyard. Reporter erb then flees the bus, running at officers while shooting, eventually he was killed by police. The wounded officer and passenger have both recovered. Police say erb had a long record and appeared determined not to go back to jail. Tom . Eva pilgrim with that new video tonight. Eva, thank you. Around the world, new developments in venezuelas growing political cries. A police helicopter. You hear it there, opening fire and dropping grenades on the Supreme Court and interior ministry buildings. The president calling it a terrorist attack. And at the same time, this pilot posting this online, calling for a rebellion. These protests have taken at least 75 lives. Next, the global cyberattack revealing a threat to americans. The Ransomware Attack in the u. S. Hospitals, putting lives at risk. Dan harris reports that hospitals and medical systems may not be ready for another attack. Reporter the ransomware virus known as petya has taken out Computer Systems all over the planet, including those at hospitals near pittsburgh. She called me and said surgery was canceled because the computers were down. We need an ekg right away and a chest xray. Reporter experts say it should be a wakeup call for the American Health care system. Sir, lets start cpr. Reporter doctor ruha has no idea what everyone around them in this simulated e. R. Knows, that this patient is the victim of a hack. Abc news was right there recently when medical professionals, security experts, and Government Employees came to phoenix to witness the first ever simulated mass hack of a hospital. So you had no idea this was a hack . I knew there was a problem with the aicd, but i had no idea it was hacked. Reporter the goal of this exercise, to bring awareness to a fax recently highlighted in a congressional report, which said the security of our Healthcare Systems is in critical condition. With so many medical devices connected to the internet, they are now considered potential threats. Dan harris, abc news, phoenix, arizona. You can see that full report on nightline. There is so much more tonight. The growing threat on the american coast. The warning to swimmers. The shark population soaring off a popular vacation spot. 150 great whites expected just this summer. Plus, the unsolved mystery in new yorks central park. New developments in the bombing that left a College Student badly injured. Get out of my garage. And the mother coming home to a big surprise. Pulled into the garage, and look what is waiting for her. Your body was made for Better Things than Rheumatoid Arthritis. Before you and your rheumatologist move to another treatment, ask if xeljanz is right for you. Xeljanz is a small pill for adults with moderate to severe ra for whom methotrexate did not work well. Xeljanz can reduce joint pain and swelling in as little as two weeks, and help stop further joint damage. Xeljanz can lower your ability to fight infections, including tuberculosis. Serious, sometimes fatal infections, lymphoma and other cancers have happened. Dont start xeljanz if you have an infection. Tears in the stomach or intestines, low blood cell counts and higher liver tests and cholesterol levels have happened. 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Authorities warning swimmers about the great white shark population, exploding in one destinati destination. Warning for possible shark attacks. Heres abcs gio benitez. Reporter tonight, the numbers tell the story. Off the coast of cape cod alone 150 great whites are expected this summer. In 2014, there were about half that. Already this month, weve seen this shark possibly a great white, lurking right next to a fishing boat right there. This 14foot great white was tagged there a few years ago and was just detected near virginias coast on sunday. Cape cod First Responders now training for shark attacks, and posting these signs warning beach goeers. They say the growing seal population, what sharks feed on, is to blame. The probability of a shark attack is extremely low. But it doesnt mean you dont use common sense when youre going into the ocean. Reporter theyre hoping to avoid scenes like this. People screaming to get out of the water at this alabama beach two weeks ago, spotting sharks in the shallow water. And tom, expers say there are a few things you can do to avoid sharks on beach, swim on sunny, clear days, but not at dawn or dusk thats when shark feed. Tom . A good time to stay out of the water. All right, gio. Thank you. When we come back, the new fireworks warning tonight. The recall just days before the 4th of july. Plus that unsolved mystery. The explosion in new york central park. What police are asking for tonight. man vo dad forgot how to brush his teeth. woman vo my husband didnt recognize our grandson. woman 2 vo thats when moderate alzheimers made me a caregiver. avo if their alzheimers is getting worse, ask about onceaday namzaric. Namzaric is approved for moderate to severe alzheimers disease in patients taking donepezil. Namzaric may improve cognition and overall function, and may slow the worsening of symptoms for a while. 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