Hospital giant hit. And headlights surprise. How well do the lights on your car work . Many of the most road. Nightly news begins right now. Announcer from nbc news World Headquarters in new york, this is nbc lester holt. Good evening, we begin with a rare aboutface for donald in full retreat tonight after he ignited a firestorm on both the right and the left by saying women who undergo abortions should face punishment if abortions were outlawed. His comment to Msnbcs Chris Matthews made even some wellknown antiabortion advocates wince. To be clear, all the republicans running for president favor a ban on abortions, but none has gone so far as to suggest legal action against the women who have them which may be why trump has quickly backed away from the remarks and adapted the establishment line. Y tur has details. You have to ban it. Reporter donald trump dropping a political bombshell telling chris these that if abortion was banned the woman who gets one should be punish punished. The answer is there has to be some form of punishment. For the woman. Has to be punishment, ten cents or ten years. That i dont know. You said you want to be president of the united states. Tell me what the law should be. I am prolife. Whats that means . Im prolife. I have not determined what the punishment would be. Why not . Because i havent determined it. A fine on human life which you call murderer . It would have to be determined. A young woman who finds herself preg sglant it would have to be determined. Reporter his comments setting off a firestorm of criticism and creating a rare moment of unity from both sides of the abortion debate. Planned parenthood president Cecile Richards denouncing the candidate on deanwitter. The march for life, a group that wants to overturn roe v. Wade we would not advocate any form of punishment for a woman who has made such a desperate and sad choice as abortion. Reporter donald trump virtually alone on the issue politically, from his republican rivals. I dont think thats an appropriate response, and its difficult enough situation and to try to punish somebody. Reporter to his supporters like hardline antiabortion rights conservative mike huckabee. From a standpoint of prolife i dont see any value in punish mc the woman, and i have to believe that as he thinks through this were going to hear a very different answer. Reporter trump himself says hes, quote, evolved on the issue, telling tim russert in 1999 im very prochoice. Reporter hours after the Chris Matthews exchange the Trump Campaign issued a full walkback trying twice to claire foy his words stating if abortion was illegal the doctor or any other person performing this illegal act upon a woman would be held legally responsible, not the woman. The woman is a victim life in her womb. The gop frontrunner who is closing in on the republican nomination faced harsh words from both democratic rivals. But to punish a woman for having an abortion is beyond comprehension. What donald trump said today was outrageous and dangerous. Reporter right now 70 of female voters nationally say they have an unfavorable view of donald trump, a gap that republican strategists worry could kill trumps chances of getting into the white house, especially if he faces off against hillary clinton. With ted cruz leading in wisconsin, donald trump cant afford to alienate conservative voters voters, but when it comes to those who already support him, they already support him because he is not a traditional politician. They give him the benefit of the doubt, even when he doesnt always say the right thing. Lester . Katy, a lot of news coming out of that conversation. Thats not only major headline trump is making this evening. Hes also turning heads with recent comments on foreign he just told Chris Matthews about the use of Nuclear Weapons. Nbcs Andrea Mitchell has those late details. Reporter donald trump with Chris Matthews today refusing to rule out using Battlefield Nuclear Weapons against isis or europe. Can you tell the middle east were not using a Nuclear Weapon. I would never say that. Never would take any of my cards off the table. How about in europe . Im not going to take it off the table in europe. You going to use them in europe . I dont know. Just say it, ill never use a Nuclear Weapon in europe. Im not taking cards off the table. Reporter trump was first asked about using Nuclear Weapons against isis by the Washington Post last week and gave a rambling answer. I dont want to use i dont want to start the process of nuclear. Remember the one thing that everybody has said, im a counterpuncher. Rubio hit me. Bush hit me. This was about isis. Can i do one thing . Would you not use a Nuclear Weapon against isis. This is a very good looking group of people. Can i go around and see who im talking trump shocked cnn saying he was okay with south korea and japan getting Nuclear Weapons and even saudi arabia. At some point we have to say, you noey what, were better off in japan protects itself against this maniac in north korea and were better off if south korea is going to start to protect it level. Saudi arabia with Nuclear Weapons . Saudi arabia absolutely. Reporter trumps comments about letting other countries becoming Nuclear Powers instead of controlling the spread of Nuclear Weapons contradicts years of u. S. Poll. I this would be reversal of policy under every democratic and republican president since ice haar and i think it would be very dangerous. Reporter trumps comments about Nuclear Policy were called shockingly ignorant in a New York Times editorial and come just as World Leaders are gathering in washington tomorrow for president obamas summit on how to stop the spread of Nuclear Weapons. Lester . All right. Andrea, thanks. Lets bring in our political director hand moderator of meet the press chuck todd. Chuck, donald trump isnt shy about making provocative statements and sticking to them, but on abortion why why did he back off so quickly . Is that not stunning in itself . Reporter it is stunning and because the prolife community criticized him as harshly as folks in the prochoice community did and thats why he had to backtrack. Look, he does come across as somebody who is a convert on this issue because he didnt know how to talk about it. He hadnt frankly it looked like he hadnt studied the issue very deeply or spoken to folks in this movement on the issue, so i think thats why he quickly walked it back. That said, we are entering a dangerous phase here if youre donald trump. Hes got to be very careful. The Republican Party and its leaders are looking for reasons to get into the not trump bandwagon. This coupled with what hes been saying about nukes and coupled with some of the other stuff, if he also loses wisconsin there could be real momentum that actually does stop him, lester. Chuck todd, thank you. A big night ahead over on msnbc, a lot more fireworks from donald trump and his rivals. Four jampacked events. Ahead. A lot of nervous eyes on the skies this evening. Millions of people under et threat of tornadoes and flash floods as a big storm pushes its way across the country. Watches and warnings have been issued. Nbcs Steve Patterson is in the storm zone tonight. Snore tonight the furry of spring storms slamming into the south. The thunderstorm threat, whipping winds, torrential rain, powerful gusts packing pounding pounding hail, already wreaking havoc in arkansas and missouri. Now, 27 Million People in the path of severe storms, a possible twister touched down near linndale, texas. Tornado watches have already been issued in four different states, with the threat stretching from kansas to midmississippi through the night. This storm may have quartersized hail or larger, do even be golf basketball sized. Reporter another threat, flash flooding. Heavy rains in arkansas making for a dangerous evening commute, so bad it swept away this dumpster in a nearby park. The Mississippi Valley already saturated from days of flooding in early march. Communities in the south already taking several Severe Weather punches. The fear, a haymaker is coming with the potential to be thrown from any direction. And tomorrow that threat area expands. 37 Million People from the gulf coast to the great lakes at risk for possible tornadoes, large hail and damaging winds. Meanwhile, heavy rain and flooding expected in the southeast until friday as some areas can see up to four inches. Lester . Steve patterson, thank you. Tonight a big chain of hospitals serving hundreds of thousands of patients in the washington, d. C. Area is struggling to get back to normal after it was hit with whats known as a ransomware attack. The latest example in such a string of attacks on hospitals, hackers gaining control, causing chaos and demanding a big payoff or else. We get more on the story from our justice wills ms. Reporter this suburban washington woman was furious when the hospital cancelled three days of her husbands radiation treatments. God love him, i hope they get it faster and he gets treatment somewhere. Reporter a cyber attack forced Medstar Health to shut down computers at ten hospitals in the Washington Area and many patients got this voice message. Our Computer Systems are still down, so we need you to bring a list of your current medications. Reporter medstar now says with backups its returning to normal and that overall patient care has not suffered. Medstar calls its computer malware but investigators say its the latest example of ransomware, locking up a computer remotely and holding it hostage. James line is head of research as a Computer Security firm. They are quite literally holding data to ransom on your computer and demanding that you pay money to get access to your data once more. Reporter a Los Angeles Medical Center 17,000 to get its system going again. A short time later similar attacks on hospitals in canada and just last week in kentucky and two more in southern california. James trainor, the fbis top cyber crime official says its spreading. Last year 2015 we saw a big uptick and the First Quarter of 2016 very aggressive targeting of this critical sector. Reporter fbi urges victims not to pay the ransom, advice many find hard to follow. Pete williams, nbc news, washington. Another of the four americans killed in the brussels terror attacks has been identified. Gail martinez of texas was traveling with her husband, an air force officer and their four children when she was mortally wounded in the airport blast. One american victim has yet to be identified. Meanwhile, as our keir simmons reports new evidence recovered from the attackers suggest the isis target list might include World Leaders. Tonight a new look at the devastation airport, an explosion at the checkin desks. The second suicide bombers blood on the floor and this is where the third bomb blew up after the airport was evacuated. But were the isis terrorists also planning to target a european head of state . The New York Times citing a Government Official tonight reporting the men behind the brussels bomgsz had a floor plan and photograph of the belgian prime ministers offer. They were found on ibrahim el bakraouis computer left in a trash can and found not far from a metro station and thats the entrance to the office of the belgian prime minister, this countrys equivalent of the white house right on the street and half a block away the u. S. Embassy. During the paris massacre a stocker match attended by the french president was interrupted by the sound of suicide bombers. One had tried to get into the stadium. Days later germanys police cancelled the game hosted by their this is a group that has wild aspirations and ambitions, one that can realize its a different matter. Reporter an tonight french officials revealing an arsenal found in a raid last week on a suspect they say was planning an imminent attack, almost three pounds of explosives, thousands of ball bearings, the exact target unknown. Lester . Keir simmons, thank you. A new report, the first of its kind, is rating the safety of headlights on some of the most popular cars on the road with some surprising results. Many of the most expensive cars did the worst in and all but one failed to be rated good. Nbcs Miguel Almaguer shed some light on something all drivers should hear. Reporter with nearly half of all traffic accidents occurring in the dark, tonight a study about headlights by the Insurance Institute for highway safety, shining a new light on a dark danger, raising concern for allen and nancy hinabush. That much about headlights headlights. Reporter the institute studied 21 2016 midsized vehicles. The toyota prius v with high beam lights the only car to rank good and 20 other vehicles are exceptional or marginal, onethird ranked poor. The most expensive doing the worst. The worst vehicle only lights up the road about 130 feet down the road compared to the best performing vehicle which can see 400 feet down the road. Reporter study found many headlights are for style, not safety. The prius v and the bmw 3 series side by side. The toyota lighting up the fence. In this example the bmw failed to illuminate a mannequin and deer. A nightandday difference from the prius. Automakers say they are within federal guidelines. Bmw and mercedes disappointed in the results of a study and confident in their lighting. Government standards allow for a wide variation in head light illumination, mostly because the able to keep up with technology. Experts say consumers need to do their own homework. Spending over 50,000 for a car with expensive headlights and you find the performance is not good, thats a little bit disappointing. Reporter for shoppers like the hinabushes no longer just kicking the tires but not also flashing the headlights. Miguel almaguer, nbc news, los angeles. Theres a lot more to tell you about here tonight, your biological clock. How much time is left on it . A simple test telling women how long they can wait to get pregnant. Also, Prince William to the rescue. An accident victim gets quite a surprise when i built my business with passion. But i keep it growing by making every dollar count. Thats why i have the spark cash card from capital one. I earn unlimited 2 cash back on everything i buy for my studio. And that unlimited 2 cash back from spark means thousands of dollars each year going back thats huge for my bottom line. Whats in your wallet . Look, the wolf was huffing and puffing. Like you do sometimes, grandpa . Well, when you have copd, it can be hard to breathe. It can be hard to get air out, which can make it hard to get air in. So i talked to my doctor. She said. Symbicort could help you breathe better, starting within 5 minutes. Symbicort doesnt replace a rescue inhaler for sudden symptoms. Significant improvement of your lung function. Symbicort is for copd, including chronic bronchitis and emphysema. It should not be taken more than twice a day. Symbicort contains formoterol. Medicines like formoterol increase the risk of death from asthma problems. Symbicort may increase your risk of lung infections, osteoporosis, and some eye problems. You should tell your doctor if you have a heart condition or high Blood Pressure before taking it. Symbicort could mean a day with better breathing. Watch out, piggies children giggle symbicort. Breathe better starting within 5 minutes. Call or go online to learn more about a free trial offer. If you cant afford your medication, its a question that can keep many women up at night, whether theres still enough time to have a baby, but now more women are using an easy test that can take all the guesswork out of how much time is left on their biological clocks. Nbcs Janet Shamlian explains. There we go. Reporter its a simple blood test, but for heather and rob it will tell them how long they can wait to have another child. Our daughter talks to her baby dolls like they are siblings and were going to try to give her a real one. Reporter that blood test nicknamed the baby deadline staest like a checkup for the ovaries. Women already struggling to get pregnant. Its now being used to problems. One of the toughest conversations i have patients who waited reporter born with 2 million eggs, by age 30 a womans ovary reserve will decrease 90 and the test measures a hormone released by the remaining eggs to determine the Quantity Left though not the quality. For alissa gold it was a difficult wakeup call. She took the test at 34, before starting business school. Hi gone into it just thinking this is going to be really easy breezy and, you know, im great and im in good health, and my results were really below normal. Reporter so she froze her eggs. Gold is now 38, married and thinking of starting a family. With a recent career change, 34yearold heather wants to know whether she can wait. Your amh level is in the top 5 to 10 of women in your age group. Thats fantastic. Yeah. Im really wow. Reporter will you put off having a second child knowing that, you know, youve got time . We may give it a go now, but its nice to know that we have more time if our first go doesnt go. Reporter a window fertility for those trying to beat the biological clock. Good job. Reporter Janet Shamlian, nbc news, norwalk, connecticut. And were back in a moment with a warning about something that most of us do every day which may increase the risk if you have allergy congestion, muddling through your morning is nothing new. Your nose is the only thing on your mind. And to get relief, anything is fair game. Introducing rhinocort allergy spray from the makers of zyrtec. Powerful relief fromt your most frustrating nasal allergyv symptom ,all day v and all night. Hasnt your nose been through enough already . Try new rhinocort v allergy spray. X muddle no more i got the discounts that you need safe driver accidentfree everybody put your flaps in the air for me go paperless, dont stress, girl i got the discounts that you need safe driver accidentfree everybody put your flaps in the air for me i cant lipsynch in these conditions. Savings oh, yeah before i had the shooting, burning, pinsandneedles of diabetic nerve pain, these feet played shortstop in high school, learned the horn from my dad and played gigs from new york to miami. But i couldnt bear my diabetic nerve pain any longer. So i talked to my doctor and he prescribed lyrica. Causes diabetic nerve pain. Lyrica is fda approved to treat this pain, from moderate to even severe diabetic nerve pain. R lyrica may cause serious allergic reactions or suicidal thoughts or actions. Tell your doctor right away if you have these, new or worsening depression, p or unusual changes in mood or behavior. Or swelling, trouble breathing, rash, hives, blisters, muscle pain with fever, tired feeling or blurry vision. R common side effects are dizziness, sleepiness, p weight gain and swelling of hands, legs, and feet. P dont drink alcohol while taking lyrica. Dont drive or use machinery p until you know how lyrica affects you. P those who have had a drug or alcohol problem r may be more likely to misuse lyrica. Rnow i have less diabetic nerve pain. And these feet r would like to keep the beat going. Ask your doctor about the white house announced today president obama is commuting the prison sentences of 61 people serving time for drugrelated offenses. Most are nonviolent offenders. More than a third of them were serving life behind bars. The president has now made a total of 248 commutations. Thats more than the past six president s combined. Now to some bad news but you may not want to sit down for it. A new study finds that sitting too much can increase the risk of early death. Researchers looked at 54 countries, and they found the average sitting time is nearly five hours a day. The study found that cutting the time by just half an hour per day could have a significant impact. As the voice of calm after disaster is leaving her post. Seismologist lucy jones was honored today for serving 33 years at the u. S. Geological survey. Known as the earthquake lady, jones is a familiar face in california. Millions turn to her for information after a quake. There she is in 1992 giving a live interview with her son in her arms after one of the strongest quakes in california history. When we come back here, royal rescue. A man nearly misses the fact that his First Responder happened to be the future king of england. Im always there for my daughter. For the little things. And the big milestones. And just like im there for her, to help protect me and my family so i can enjoy all lifes moments. Pacific life. Helping families longterm Financial Security with lifelong retirement income. Talk to a Financial Advisor today to grow your future with confidence. Good news. Youre down with crestor. Alright now theres a way you can get crestor for 3. Adding crestor, along with diet, lowers bad cholesterol. Crestor is not for people with liver disease, or women who are nursing,pregnant, or may become pregnant. Tell your doctor all medicines you take. Call your doctor if you have muscle pain or weakness; feel unusually tired; have loss of appetite, upper belly pain, dark urine or yellowing of skin or eyes. These could be signs of serious side effects. Ask for the crestor 3 card. Ask your doctor about crestor. You get a cold. You cant breathe through your nose. Suddenly, youre a mouthbreather. A mouthbreather how can anyone sleep like that . Well, just put on a breathe right strip and pow medi i cine alone. So you can breathe and sleep. Shut your mouth and say goodnight mouthbreathers. Breathe right you dont let anything keep you sidelined. Thats why you drink ensure with 9 grams of protein and 26 vitamins and minerals. Come on grandma for the strength and energy to get back to doing. What you love. Ensure. Always stay you. This is sheldon whose long day setting up the news starts with minor arthritis pain and a choice. Take tylenol or take aleve, the 1 recommended pain reliever by orthopedic doctors. Just two aleve can keep pain away all day. Finally tonight, a story about a british man who recently had a brush with royalty, and he nearly didnt realize it was happening, but as our rehema ellis explains, he had a very good excuse. Reporter this man on the stretcher got two surprises recently. He was knocked unconscious and looked closely to the right side of the picture. The rescue worker in the glasses holding the mans head is the future king of at that point i didnt realize it was him. Reporter today on British Television jim with his arm in a sling explained he was still reeling from medication after being he had i had a tree branch and didnt know who was on the rescue team. It wasnt until they were actually loading me into the helicopter and i said oh, i hope willsy is not flying this thing. Reporter but he was, and the prince told him he had been holding his head for 30 minutes hemps been a pilot for years. Doing a job like this is worthwhile, valuable and to me it isnt anything better. Reporter this comes at a perfect time for the president. He and his wife kate have been royally criticized for attending less engagements than his 89yearold grandmother. Hes doing a good job. Reporter after being this close to a text would be nice. Rehema ellis, nbc news, london. And that will do it for us on this wednesday night. Im lester holt. For all of us at nbc news. Trump on the grill. The donald skewered in two combative new interviews. Thats the argument of a 5yearold. Now on extra locking horns with anderson she was grabbing me. Going to the mat with lauer. Are we going do destroy a mans life . Has the tide turned on trump . The candidate under siege today from his Campaign Managers battery scandal to his socalled