Gender gap between men and women who it comes to having a heart attack. Knowing the signs and the differences between the sexes that could save your life. Nightly news begins right now. News World Headquarters in new york, this is nbc nightly news with lester holt. Good evening. There will be no quick bounce backs from the blizzard of 2016. Much. Snow measured in feet from washington to new york, paralyzing entire cities, cutting off neighborhoods, some left flooded and grounding thousands of flights, assuring its impact would be felt nationwide. Stormrelated deaths have now reached at least 40. The Financial Impact at 850 million. So many people and so many things affected, but the recovery, albeit uneven, is under way, and we have full coverage starting with nbcs Miguel Almaguer in washington, d. C. Miguel, good evening. Good evening. This may be the largest snow dumping center on the entire east coast. Much of the snow from the washington, d. C. Area is brought up to this old football stadium. The operation here is massive. The trucks have been coming in and out of this area for hours hauling snow all the way around this parking lot, and the clean up, thats far from done. It packed a punch and crippled the region. Tonight millions are still buried under snow and ice. The roads have completely impassable. This is absolutely terrible. Were all stuck. Reporter plows have been abandoned, and many roads untouched. Ive done the part i usually have to do. The part they are supposed to do isnt done. Reporter in washington, d. C. , the government shut down again. Schools and businesses are closed. For First Responders a state of emergency. Trying to pull some of this out. Reporter some stuck in the snow. In round hill, only take you so far. We reached this community by foot. This is the only way in and out, huh . No plows on these streets for days. Were still trapped, you know. Reporter neighbors have shoveled their way to each other, but they have no way out. For Courtney Krause the road was her life line. Her 3yearold son bradyen has Heart Disease. If he needs serious help its a matter of minutes, maybe even seconds, and here we dont have that. They cant get to us. Reporter the historic snowfall was expected, but for some cities the big amount a huge surprise. Records in maryland, pennsylvania and new york. With all the snow came plenty of problems. Roofs are down on businesses, barns and homes. Today in queens, the roads are a mess, but classes went on. School buses slipping and sliding as much frustration here as there is snow. My daughter has to go to school. We cant even get through. Reporter tonight across the east this is the big dig, but as temperatures plummet they are worried tomorrow will be the big freeze. Miguel almaguer, nbc news, washington. Reporter this is jacob rascon along the jersey shore. A direct hit along the southern coast. Our operations today is really focusing on anybody thats calling in for property checks so well get a lot of calls for gas leaks or electrical fires and things like that. Reporter it was the worst flooding the town of west wilewood has ever seen. Hundreds of homes surrounded. Dozens had to be rescued. The massive winter storm causing record high tides. West wildwood suddenly a virtual island. The water is mostly gone, but so is the sea wall that protected the town. Now a mangled mess. Town officials call the damage here catastrophic and with another storm on the rebuild fast. For us this is worse than sandy. We had we had we think six to eight inches higher this sandy. Reporter this morning governor Chris Christie responded to critics who question why he was back on the campaign trail in new hampshire. Residual damage. There is no residual flooding damage. All the flooding receded yesterday morning. Obviously this situation for us. Reporter Barbara Williams woke up to this. Just a mess. I dont know who is going to clean it all up. We cant. Reporter debris everywhere you look. Boats hundreds of feet from their docks. And with the possibility of another storm a scramble to prepare yet again. The mayor estimates that the overall damage here to be in the millions of dollars. Whether its home repairs, removing debris like there or rebuilding the critical sea wall which will happen as soon as the town can find the money to do all right, jacob. Thanks. And then there is the travel night wear from this massive blizzard still not over. Today alone 1,600 flights in the u. S. Were cancelled. Thats in addition to the huge backlog of departures and arrivals scrubbed over the weekend. Our tom costello has more on the huge struggle at airports to get back on schedule. Reporter at the major east coast hub airports from laguardia to philly to washington, day three of the big digout. At Reagan National airport, enough snow to fill a football field dumped into a massive new snow melter. While the runways were clearing, the parking lots take a lot longer. And without parking spots, passengers and employees cant get inside. So these guys are pushing and hauling snow from sunup to sundown. Going home. Reporter after days of empty gates, finally today the runways and ramps were reopening. American alone brought to jump start operations. Mariana spent last night on the floor here. I was lucky that i was like sleeping on the heater so i wasnt cold. Reporter nationwide, a staggering 13,000 flights cancelled since friday morning. Flight radar 24 captured washingtons normally active airspace nearly empty on sunday and jfk at new york delta managers say its their biggest recovery effort since Hurricane Sandy since 2012. The challenge now, getting all of the planes and crews back into position nationwide and then schedule to get passengers where they need to go. Were operating a full schedule today, but for the airline it will take a couple days to recover. Reporter not just air travel. Waiting for a train. Hopefully our train will not be cancelled. Reporter amtrak on reduced service today, though it never ceased operations during the storm as it cleared 400 miles of track. Tonight from rail to road to runway a slow rebound on the east coast. Flight aware pretty close to normal operations tomorrow. On wednesday right now very few cancellations in advance, and this may have happened at an opportune time because really this is one of the lower periods of travel across the country this time of year. Very few people are on holiday or vacations, and that makes it a bit easier to resume normal operations. Lester . All right. Tom costolo, thanks. To politics now. One week until iowa, a and high drama down the stretch on both sides. Hillary clinton and Bernie Sanders locked in a neck and neck battle as ted cruz tries to fend off Donald Trumps momentum. Each focused on the numbers that count, and weve got it all covered starting with nbcs Hallie Jackson in iowa. Hi, hallie. Reporter good evening, lester. Republican Party Leaders here in iowa tell nbc news they are getting ready for record turnout one week from tonight, something that could help donald trump, but with as many as four in ten people saying they will wait until the last minute to make up their minds about who to support, what happens over the these closing arguments will make a difference. From the back of the pizza chain where she works angie point watches candidates swing by for a slice and a speech. With seven kids at home i do like Homeland Security as an issue. I want to keep my kids safe. Reporter who top two. Who are the top two . In between trump and ted cruz. Reporter and recently she decided on trump as he surges 11 points, ted cruz slipping four. Whats changed . I like ted cruz. Hes been very nice to me. Reporter trumps tune. Hes a nasty guy and he brought it up at the debate. He started it and i finish it had. Reporter hammering cruz for days on his eligibility, his positions on ethanol and immigration, and his personality. Trum supremely confident and taking aim. I could stand in the middle of fifth avenue and shoot somebody, and i wouldnt lose any voters, okay . Its like incredible. Reporter cruz hitting back. Youve spent six, seven months hugging donald trump, embracing him, so how you say he shouldnt be their pick . Im happy to have a conversation about how donalds and my records differ when it comes to defending life. Reporter cruz today getting backup from former rival rick perry as his supporters hope to sway iowans with new ads. Does this sound conservative . I am prochoice in every respect. And the rest of the field just trying to not finish so far out of the money that it appears that they just have no shot at the nomination. Reporter including marco rubio looking to get hot late, getting the nod from the states biggest paper and standing side by side with freshman star senator jodi ernst. Theres only seven days left so i dont think people should be worried about peaking right now. Reporter under 170 hours and counting. Hallie jackson, iowa. Reporter im a34i67 el as the democrats make their closing arguments. He said, you know, i dont know. Like my head versus my heart. I said can you have it both. Reporter each and its so hard to do anything to pay your bills. Youre ashamed all the time. Its just hard. Thank you, thank you. And until millions of people who are experiencing exactly what you guys are experiencing do say that, we dont make change. Reporter both candidates are counting on field armies, paid staff and thousands of volunteers. For Democrats Iowa caucus rules are more complicated than for republicans. Candidates have to meet a minimum threshold of supporters in each caucus to even get votes. Clinton posted an animated howto manual today. And its as easy as 1, 2, 3. Reporter sanders team proviewsed a video friday. In youre 18 by friday, in iowa you can caucus. Reporter map showed the challenge for sanders. His supporters are concentrated in three counties with college towns, but to win he needs firsttime voters to show up all over the state. So hes riding a bus rural areas and also telling College Students go mom. We hope they will go home hand visit their parents and go to their own local caucus and bring their parents with them. Weve geared up and think our Field Operation is extraordinary. Reporter for the first time president obama with politico seemed to be tipping the scales for clinton. She can start here day one, more experienced than any nonvice president has ever been who aspires to this office. Reporter and in an unpredictable year, now the threat of a thirdparty challenge from multibillionaire mike bloomberg. The former new york mayor might run if sanders is the democratic nominee and if trump or cruz gets the republican nomination, a decision bloomberg wont make until march. Lester . Thanks, andrea. Theres breaking news from texas. A grand jury investigating undercover footage of a meeting with the planned parenthood official has cleared the organization of any wrongdoing while instead choosing to indict the antiabortion activist involved in making. So much controversy. Our justice correspondent Pete Williams is in washington with late details. Pete . Reporter a surprising turn, leverett, in an investigation requested by the governor of texas who wanted to know if planned parenthood broke any laws. The question arose after antiabortion advocates made videos of representatives of planned parenthood talking about tissue from aborted fetuses. The videos became a sensation and now the makers. Videos are indicted, two face tampering with government records and one is accused of violating state laws about buying human organs, a it is demeanor and the District Attorney said we must go where the evidence leads us and said the government cleared planned parnd hooth of breaking any laws and that brings to 12 the number of states where investigations have cleaned planned parenthood. No comment from the organizations that made the videos. Thank you. A massive manhunt for three dangerous an elaborate daring escape from a maximum security jail. As Nbcs Joe Fryer reports authorities are pleading with the public for health. Reporter three days after a brazen escape from a maximum security jail in original county investigators are pleading for the publics help. These three are extremely dangerous felons and need to be apprehended and brought back into custody immediately. Reporter escapees were housed in a large cell that holds about 60 inplates. Photos from inside show the men used tools to cut through a steel screen in their cell and then entered the jails plumbing tunnels making their way to an unsecured part of the roof. From there its believed they fashioned ropes out of linens so they could rappel down the side of the jail five stories in all. The inmates were last seen friday morning during a 5 00 a. M. Head count. Investigators believe they escaped shortly after, pointing to this grainy Surveillance Video which shows movement on the roof. The jail did not realize they were gone until the next head count at 8 00 p. M. Which means the about a 15hour head start. Its creepy. You dont know if they are still in the area. Reporter all three suspects are accused of violent crimes, so Hossein Nayeri is charged with kidnap and murder and tactien duong with attempted murder and Jonathan Tieu with theres no indication that the escaped inmates have left country. We feel that they may be embedded somewhere in the community and thats why were reaching out to the community. Reporter investigators dont know how the inmates got the tools that were used to cut through all of that metal, and its unclear if any accomplices were waiting here outside the jail to pick them up after they escaped. Lester. Joe fryer in southern california, thank you. Still ahead, a wakeup call for women about their hearts and a new study on the big gender gap in heart attack treatment. Why women need to be hey this is lloyd. To prove to you that the better choice for him is aleve. Hes agreed to 30 acres to cover by sundown. Well be with him all day as he goes back to taking tylenol. 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Get out there, in the 2016 ford escape. Be unstoppable. This is my fight song take back my life song were back now with a new warning about the number one killer of women, Heart Disease. A big gender gap when it comes to having a heart attack. The symptoms are very different between the sexes leading some women to ignore the signs their body is telling them. As nbcs Anne Thompson reports, knowing those signs could save your life. Reporter when it comes to treatment for Heart Disease, it is still a mans world. In a first of its kind report on heart attacks in women, Heart Association says Heart Disease remains undertreated and underdiagnosed in women. It starts with a difference in symptoms. Men seem to have severe chest pain before a heart attack. Womens signs can be more subtle including shortness of breath, nausea and jaw pain. Did you have a happy day. Reporter kathy wildman, an active mother of two with high cholesterol was just 30 when a heart attack sent her to the hospital. I had a challenging time getting even the hospital at the time to accept me because i didnt look like someone who should be suffering from an event. Reporter with this new information, cardiologist dr. Jennifer marezt hopes treatment of women will improve. This statement against us a road map as a clinician to look at gender differents with Heart Disease. Reporter take risk factors. Researchers say women with high Blood Pressure have a stronger risk of a heart attack than americans and a young woman with diabetes, her risk for heart five times higher compared to young men. The risks are even greater for minority women. In those communities, africanamerican and hispanic, high incidence of hypertension, diabetes, obesity, inactivity and exposure to chronic stress. Reporter the good news simple Lifestyle Changes can make a huge difference, and an astonishing 80 of Heart Disease and stroke are preventible. Anne thompson, nbc news, new hyde park, new york. 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Today outraged residents gathered on the steps of city hall furious that they are still getting bills for leadcontaminated water service. From alabama. Meet a 2yearold bloodhound. While much of the country was bundled up this weekend, she was out running free after escaping from her backyard. She took off and somehow found her way into a Half Marathon being run nearby. She ran the entire way and heres the kicker. She finished seventh with a time of 1 32, even has a medal to prove it. When we come back, how the super bowl showdown between cam and peyton is already making history. Guys, its just the two of you. The setting is just right. Theres something in the air. But heres the thing about half of men over 40 have some degree of erectile dysfunction. Well, viagra helps guys with ed get and keep an erection. Ask your doctor if your heart is healthy enough for sex. Do not take viagra if you take nitrates for chest pain or adempas for pulmonary hypertension. 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Reporter super bowl 50 will pit the nfls experienced past against its energetic future. At 39 Peyton Manning is the leagues elder statesman, a fivetime mvp. Caught for the touchdown. Reporter a virtual lock for mvp this season, 26yearold cam newton. I dont know if its the best quarterback matchup weve ever seen in but i do think its one of the most unique. Reporter twitter lit up with comparisons from cam newtons dance move and the difference in the age gap. Cam was 9 when peyton started with the colts in 1997. Both the number one overall draft pick their year. When you start looking at these two guys, old school versus new school. Reporter irresistible matchup all the buzz on sports radio. Now his jerseys are flying out of stores. Ahead of his fourth super bowl and the chance to end a storied career with a second ring. I mean, peytons definitely got the experience, one of the good things good for them. Reporter just weeks ago an injured manning benched by the broncs and a report linking him to a banned drug, an allegation he strongly denies. In for the touchdown. Reporter but the heir apparent is cam newton. A linebackersized quarterback with an arm like a rifle who can dive over any defense. Old school about ready to get new schooled. Comeback after a serious car accident 13 months ago. Today they sold more of his jerseys than during the holiday. A quarterback duel for and of the ages as newton and manning make for a clash of the titans. Janet shamlian, nbc news, houston. That will do it for us on this monday night. Im lester holt. For all of us at nbc news, thank you for