from new york here's jeff glor , zach ertz with the captioning sponsored by cbs >> glor: a sharp fall on wall street. [bell ringing] the dow drops more than 1,100 points as a sell-off continues. also tonight, the security plans for an olympics just 50 miles from north korea. holly williams reports from the from the lines -- front lines of a very controversial war. needs flu tests promise quick results, but can you trust them? the biggest rocket since the saturn 5 is ready for launch. with special cargo on board. >> the long drought is over. >> glor: and the leader of the pack of underdogs. >> i'm going to tell you

something, i got the best players in the word. >> th this is the "cbs evening news" with jeff glor. >> glor: good evening. the stock market picked up where it left off last week, continuing its sharp slide. the dow plunged at the opening bella dinh-zarr, then recovered, but in the afternoon the sell-off accelerated. at one point the blue chip index had fallen by nearly 1,600 points before closing down more than 1,100, that's record one-day point drop. cbs news business analyst jill schlesinger is here. an absolute record drop, not percentage-wise at least. jill, talk to us about what's happen, correction, bear market, what's going on? >> we have been enjoying this bull market since march 9, 2009, the second longest bull on record, so it stands to reason that we've been a little overdue for some selling. if you look at it, this bear market, a bear market would be defined as a 20% drop from a

recent high. the last two days were down 8.5% from the high reached on january 26th. so close to a 10% correction. not there yet. got to remind everyone, we've had these dips before. markets have come back, so we don't know what tomorrow will bring. >> glor: the president has talked a lot about stocks in the run-up. we'll have more about what the white house said today in a moment, but put that in perspective, as well. >> glor: i think the best way to think is what would happen if i put $10,000 into the stock market right after the president was elected. even with this two-day sell-off, that $10,000 would be worth $13,280 today. i also want to remind everyone, just 54% of all americans own a stock, a mutual fund, a pension, so this doesn't affect everyone. >> glor: but those that are in the market, if nerves are frayed right now, what are you telling them in >> i'm telling them, look, i know it's scary. of course you see 1,100 points.

it really shakes you to the core. however, if you're a long-term investor, you do want to stick to your game plan. the biggest reason is that we know when people try to time the market, get out of the way of maybe an impending bear, they may make one good decision, but it's so hard to make the second good decision, when to get back in. historically market timing doesn't work. stick to your game plan and again, if you need your money within a year, get that money out of risk assets. never should have been there to begin with. >> glor: always good advice. jill schlesinger, thank you very much. the market's tumble came as president trump was talking about his tax cuts in ohio. and dean reynolds is there. >> your paychecks are going way up. your taxes are going way down. >> reporter: as the president spoke near cincinnati, he sounded unaware of the news from wall street at the corner of the screen. >> wait until you see g.d.p. over next year or two. wait until you see what happens

to our country. >> reporter: listening to mr. trump, you would have not known that the dow jones industrial average was off more than 1,000 points or that cable news networks were breaking away from his speech to sound the alarm. >> we're interrupting for breaking news. >> reporter: mr. trump came here to ohio to visit with workers at a plant that makes hydraulic cylinders for finely tuned machines. and while he often talks up the stock market and even claims credit for its previously record-setting height, mr. trump didn't mention it in his remarks today. en stead he dwelled on tax cuts and the leadership needed to enact them. >> you can work hard, but if you don't have the right leader setting the right tone, in all fairness -- i'm not even saying. i'm non-brag doeious. >> reporter: he said people who did not clap during his

state of the union were worse than naysayers, they were un-american. >> they were like death, and un-american. un-american. somebody said treasonous. i guess. why not? can we call that treason? why not? i mean, they certainly didn't seem to love our country very much. >> reporter: in response to the stock market swoon, white house press secretary sarah sanders said late today, "the president's focus is on our long-term economic fundamentals, which remain exceptionally strong." jeff? >> glor: dean reynolds, thank you very much. late today the house intelligence committee voted to release another classified memo about the russia investigation. this one was drawn up by democrats and is said to counter the memo released by republicans last week that alleged anti-trump bias by the f.b.i. the white house will now decide whether to make this new memo public.

federal investigators said today a signaling system was down for maintenance yesterday when an amtrak train crashed into a freight train in south carolina. also a switch was apparently in the wrong position. two people were killed. more than 100 were hurt. kris van cleave has more on this. >> reporter: from the air, the violence of the crash is clear. the head-on collision between amtrak train 91 and an empty csx freight train demolished the two locomotives. robert sumwalt. >> that switch should have been realigned for the amtrak to go through the main track. >> reporter: why wasn't it? >> that's what we want the find out. >> reporter: the amtrak train had 147 people on board and was traveling approximately 56mph when a device known as a track switch diverted it to a side track where the freight train was parked. >> there were bodies everywhere. seats came up off the floor.

glass came out all over the train. >> reporter: this stretch of track is controlled by csx, not amtrak. investigators say csx had manually flipped the switch to move freight cars to the side track. it's unclear how long the switch had been if the wrong position. track signals were off line for maintenance. the engineer hit the emergency brake three seconds before the collision. if the signals had been working, could that have been an earlier working -- warning for the engineer? >> it's possible. >> reporter: last week a train carrying republican lawmakers hit a garbage truck in virginia and in december this amtrak train was going more than twice the speed limit when it derailed going around a curb in washington state. >> are we willing to say there is a systematic issue with amtrak? no. we're not. >> reporter: the n.t.s.b. says the engineer of that amtrak train should have been watching ahead of time for that switch, but once the train got to the switch point, he would have had only about eight seconds to try to stop it.

csx has not commented on the position of that switch but says it is participating in this investigation. jeff? >> glor: kris van cleave in south carolina. thank you. today the u.s. military said it's begun shifting its focus if iraq now has the isis has been evicted from most of the country that. will mean a draw-down of american troops from a peak of 9,000 to about 4,000. many will be sent to afghanistan or kuwait. iraq and afghanistan may get the headlines, but right now there may be no place in the word more dangerous than yemen. a three-year-old civil war is in a stalemate. one side is backed by saudi arabia, the other by iran. holly williams got rare access to the from front line. >> reporter: the saudi arabian government invited us to yemen to show us their version of the war there. these fighters are taking us to the front line, which is at the top ofhthis mountain range. for nearly three years saudi arabia has been backing these

yemeni government soldiers. [gunfire] fighting a brutal war against houthi rebels who have seized swaths of land. they killed this houthi gunman two months ago, they told us. yemeni general nasser al dhaibany told us saudi air strikes are helping him win back these barren hills, and the saudis are supported in this war by the u.s. [gunfire] houthi positions are less than a mile away. have you lost family members? have you lost friends? both sides in this fight are accused of war crimes, but with weapons subplied by the u.s., saudi arabia is capable of much greater damage. the saudi-led coalition has hit weddings, markets, and schools with air strikes according to a u.n. report, and aid groups say a saudi blockade has contributed

to starvation and a deadly cholera outbreak. thousands have died. >> we are not part of the famine or the food security in yemen. >> reporter: colonel turki al-malki is a spokesman for the saudi-led coalition. saudi arabia has been accused of trying starve yemenis into submission. you're saying that's not true in >> not true. >> reporter: food is a weapon in yemen, and both sides know it. these men told us houthis seized their houses, leaving their children homeless and hungry. but only the saudis are u.s. allies fighting this bloody war with american support. >> glor: holly joins us now. she is back in istanbul. holly, extraordinary access. tell us a little more about how this works. >> well, jeff, it's very difficult for us to get access to yemen at all. we were only there for around two days, and we were accompanied by officials who

decided what we could and couldn't see. so that constrained us as journalists. one place we obviously couldn't go was across the front line and into houthi territory where those air strikes have been landing and hunger and disease have been so devastating. i think what's jarring about going to yemen is how shockingly poor it is. i mean, eight million people on the brink of famine when the country's neighbors on the arabian peninsula are so very rich, countries like saudi arabia. >> glor: so important perspective, holly williams, thank you. vice president mike pence left today on a five-day trip to asia. mosley to ratchet up pressure on north korea's oppressive regime. among his stops, friday's opening ceremony of the winter olympics in south korea. ben tracy is in the host city, pyongyang. >> reporter: they've been holding drills for months, simulating everything from a hostage situation to shooting down a drone about to drop

explosives on an olympic venue. the chief of police told us that a terrorist attack by drone is the biggest concern. in all 21 olympic venues and facilities are being closely monitored at that command center. this 60,000-person olympic security force is about twice that deployed during the summer olympics in rio. that force includes south korean marines, who have been testing their tolerance for the cold and snow found in the mountains of pyongyang. this is what is known as the joint security area of the d.m.z. this is where north and south meet. you literally have south korean segars here who are staring into north korea, which is just beyond those blue huts. in the shadow of a nuclear standoff, the u.s. and south korea delayed their annual military exercises. in an effort not to provoke north korea during the olympics.

fears of a missile launch or a nuclear test have lessened now that north korea is sending a large delegation to the games. but a large-scale cyberattack is something they are still concerned about here, and this is something that north korea is particularly adept at. they have hired a private security firm to try to prevent that kind of attack. jeff? >> glor: ben tracy in pyongyang, thank you. now to some other stories we're following in the evening news feed. former u.s.a. gymnastics doctor larry nassar was sentenced today for sexual assault at a gymnastics club in michigan. this was the third and final sentencing for nassar, the former women's gymnastics doctor. there was massive pile-up outside springfield, missouri. since sunday the state has seen more than 650 crashes on snow-covered roads. at least five people have been killed. in iowa poor visibility led to a chain-reaction crash as it

killed at least one person. up to 50 vehicles were involved in that. and police in philadelphia had all they could handle last night as tens of thousands converged downtown to celebrate the eagles' first super bowl title. at least one consider was toppled and an awning at the ritz-carlton hotel collapsed under the weight of a large group. wow. despite it all, police said just three arrests were made. today n.f.l. commissioner roger goodell handed the super bowl m.v.p. award to the eagles' quarterback nick foles. there is much more ahead on tonight's "cbs evening news." >> reporter: patients are finding out they may have the flu even if the test came back negative. >> looks like a duck, quacks like a during it's the flu. >> glor: spacex readies its heavy-duty rocket. >> it has more than twice the thurst of any other rocket currently flying. >> i knew we would have to score a touchdown in that situation. a field goal wasn't enough. >> reporter: the patriots'

dynasty ran into the eagles' destiny. >> what was going through your mind in that lass pass by brady? mind in that lass pass by brady? >> i was hoping it was incomplete. >> and time runs out. d help keep my body in balance. i love these. sunsweet amazin prunes, the feel good fruit. the markets change... at t. rowe price... our disciplined approach remains. global markets may be uncertain... but you can feel confident in our investment experience around the world. call us or your advisor... t. rowe price. invest with confidence. ( ♪ ) i'm 65 and healthy. i'm not at risk. even healthy adults 65 and older are at increased risk of pneumococcal pneumonia. isn't it like a bad cold or flu? pneumococcal pneumonia is a potentially serious bacterial lung disease. in some cases, part of your lung may fill with mucus, making it hard to breathe. can i catch it from a pneumococcal vaccination?

no. the vaccines do not contain live bacteria. talk to your doctor or pharmacist about how to help protect yourself. talk to your doctor or pharmacist for my constipation, i switch to miralax. stimulant laxatives forcefully stimulate the nerves in your colon. miralax is different. it works with the water in your body. unblocking your system naturally. save up to $5 on miralax. see sunday's paper. that goes beyond assuming beingredients are safe...ood to knowing they are. going beyond expectations... because our pets deserve it. beyond. natural pet food. alright, i brought in high protein to help get us moving. ...and help you feel more strength and energy in just two weeks! i'll take that. -yeeeeeah! ensure high protein. with 16 grams of protein and 4 grams of sugar. ensure. always be you. fthere's flonase sensimist.f up around pets. it relieves all your worst symptoms including nasal congestion, which most pills don't.

and all from a gentle mist you can barely feel. flonase sensimist. >> glor: with the flu season still bad, many people are taking a quick test to find out if they have it. but according to the centers for disease control, the results can be dangerously misleading. here's omar villafranca. >> reporter: 24-year-old dominic sy doesn't feel well. >> just relax. >> reporter: he came to this emergency room to get a rapid flu test. >> it was a bit uncomfortable. the swab itself just went really deep into the throat. >> reporter: the test requires a swab to go deep into the nasal cavity for a proper sample, but the results, back in around five minutes, can produce false negative, telling a patients who has the flu that they don't. the c.d.c. says the quick tests are only 50% to 70% accurate, but they are the most common flu

tests performed at hospitals and clinics during flu season. last week 15-year-old kira molina went to a suburban atlanta clinic when she wasn't feeling well. her flu test came back negative. a few days later the teenager died of liver complications from the virus. dr. cedric spak is an infectious diseases doctor at baylor, scott and white in fort worth. >> this is a test that can be easily done in the office as what they call a point-of-care test, so you can get the results quickly at the exact time you test it. >> reporter: a few minutes? >> a few minutes, correct. >> reporter: some patients elect a comprehensive lab test, which takes longer to complete and is more accurate, but even if a rapid test comes back negative, dr. spak says healthcare professionals are trained to treat symptoms. >> looks like a duck, quacks like a duck, it's got to be a duck. i ma may not move it's a duck. so somebody comes in, fever, aches, a lot of people sick in the house or at the school,

sounds like the flu, we know the flu is everywhere, it's the flu. >> reporter: the difference in costs can be the difference for patients. the rapid test costs a few dollars. the rapid test can cost $200. >> glor: wow. coming up elon musk gets set to coming up elon musk gets set to launch its biggest rocket with a tesla on top. you're really not sick! you were just up late watching the game. you faker! sorry, that was uh, my grandma.

it's life insurance and wharetirement solutions toic? help you reach your goals. it's having the confidence to create the future that's most meaningful to you. it's protection for generations of families, and 150 years of strength and stability. and when you're able to harness all of that, that's the power of pacific. ask a financial advisor about pacific life. abdominal pain... ...and diarrhea. but it's my anniversary. aw. sorry. we've got other plans. your recurring, unpredictable abdominal pain and diarrhea... ...may be irritable bowel syndrome with diarrhea, or ibs-d. you've tried over-the-counter treatments and lifestyle changes, but ibs-d can be really frustrating. talk to your doctor about viberzi,... ...a different way to treat ibs-d.

viberzi is a prescription medication you take every day that helps proactively manage... ...both abdominal pain and diarrhea at the same time. so you stay ahead of your symptoms. viberzi can cause new or worsening abdominal pain. do not take viberzi if you have no gallbladder, have pancreas or severe liver problems, problems with alcohol abuse, long-lasting or severe constipation, or a bowel or gallbladder blockage. pancreatitis may occur and can lead to hospitalization and death. if you are taking viberzi,... ...you should not take medicines that cause constipation. the most common side effects of viberzi... ...include constipation, nausea, and abdominal pain. stay ahead of ibs-d with viberzi. when you have a cold, stuff happens. [ dog groans ] [ coughs and sneezes ] nothing relieves more symptoms than alka seltzer plus maximum strength liquid gels. ♪ strummed guitar you can't experience the canadian rockies through a screen. you have to be here, with us.

♪ upbeat music travel through this natural wonder and get a glimpse of amazing, with a glass of wine in one hand, and a camera in the other, aboard rocky mountaineer. canada's rocky mountains await. call your travel agent or rocky mountaineer for special offers now. >> glor: spacex's new monster rocket is ready for launch. the falcon heavy will blast off as early as tomorrow from the same pad that sent men to the moon half a century ago. it's powered by 27 engines and three massive first-stage boosters. there's so much thurst it can lift a 737 into orbit, passengers, luggage and all. but for its first flight, spacex and tesla founder elon musk is sending a cherry red roadster to orbit mars. >> as you were saying, normally when a new rocket is tested, they put something really boring

on like a block of concrete or a chunk of steel. that's pretty boring, so what's the most fun thing we could put on? >> glor: if the launch succeeds, the falcon heavy will be the most powerful rocket since the space shuttle. musk says the roadster will be playing david bowie's space odyssey. up next, how the underdogs flipped the script in super bowl lii. [seen it. covered it. n. we know a thing or two because we've seen a thing or two. ♪ we are farmers. bum-pa-dum, bum-bum-bum-bum ♪ a trip back to the dthe doctor's office, mean just for a shot. but why go back there, when you can stay home, with neulasta onpro? strong chemo can put you at risk of serious infection, which could lead to hospitalizations. in a key study,

neulasta reduced the risk of infection from 17% to 1%, a 94% decrease. applied the day of chemo, neulasta onpro is designed to deliver neulasta the next day, so you can stay home. neulasta is for certain cancer patients receiving strong chemotherapy. do not take neulasta if you're allergic to neulasta or neupogen (filgrastim). ruptured spleen, sometimes fatal as well as serious lung problems, allergic reactions, kidney injuries, and capillary leak syndrome have occurred. report abdominal or shoulder tip pain, trouble breathing or allergic reactions to your doctor right away. in patients with sickle cell disorders, serious, sometimes fatal crises can occur. the most common side effect is bone and muscle ache. so why go back there? if you'd rather be home, ask your doctor about neulasta onpro. ♪ living well when life gets busy, choose the immune supplement with more. airborne® with 2 times more vitamin c than emergen-c gummies. and specially crafted with vitamins, minerals and herbs. airborne® also with probiotics.

can start in the colon constiand may be signs of an imbalance of good bacteria. only phillips' colon health has this unique combination of probiotics. it provides four-in-one symptom defense. it's your daily probiotic. i'm actually closer to my retirement daysing. than i am my college days. i just want to know, am i gonna be okay? i know people who specialize in "am i going to be okay." i like that. you may need glasses though. schedule a complimentary goal planning session with td ameritrade. copdso to breathe better,athe. i go with anoro. ♪go your own way copd tries to say, "go this way." i say, "i'll go my own way" with anoro. ♪go your own way once-daily anoro contains two medicines called bronchodilators, that work together to significantly improve lung function all day and all night. anoro is not for asthma . it contains a type of medicine that increases risk of death

in people with asthma. the risk is unknown in copd. anoro won't replace rescue inhalers for sudden symptoms and should not be used more than once a day. tell your doctor if you have a heart condition, high blood pressure, glaucoma, prostate, bladder, or urinary problems. these may worsen with anoro. call your doctor if you have worsened breathing, chest pain, mouth or tongue swelling, problems urinating, vision changes, or eye pain while taking anoro. ask your doctor about anoro. ♪go your own way get your first prescription free at anoro.com. ♪ fly, eagles, fly >> glor: the eagles have landed in philadelphia. the super bowl champs arrived to a heroes' welcome.

super bowl lii began the look like a movie we've all seen before. this time the ending was different. >> reporter: everyone knew what was going to happen. >> second and. two. >> reporter: tom brady had almost 2.5 minutes, a time-out, and all of recent football history on his side. >> brady gets hit. the ball is out. >> reporter: until he didn't. >> philadelphia has it. >> reporter: the patriots' dynasty ran into the eagles' destiny. >> launching one for the end zone. time runs out. >> reporter: think about it. there was no other way for this team, the eagles, to win than as the one predicted to lose. >> and for the philadelphia eagles, the long drought is over. finally. >> reporter: they were underdogs in every playoff game. they had never won a super bowl. they lost their starting quarterback late in the season and turned to a back-up. they were coached by a guy who

spent his career as a back-up and who was coaching high school football a little more than a decade ago. but doug pederson -- >> fourth and goal. >> reporter: with go-for-broke calls. >> foles, touch your. >> reporter: on more than one occasion. >> what's that call? >> reporter: oversaw one of the great david versus goliath stories in american sports, toppling tom and the insanely, consistently great patriots. >> a lot of people counted us out, but that locker room believed. we believed in each other. they believed in me. >> reporter: the pats, for sure, will be back again next season as the favorite. the team that was never the favorite, they're now world champions. >> glor: congratulations, philadelphia. that is the "cbs evening news" tonight. i'm jeff glor. good night. captioning sponsored by cbs captioned by media access group at wgbh access.wgbh.org

when we see a woman who comes to cancer treatment centers of america in philadelphia to have her breast cancer treated, she's coming for the expertise that we have, for the multimodal therapy where the specialists talk to each other and form a treatment plan together. we were looking for a cancer team that would help us decide the best course of action. amy met with our three specialties, radiation oncology and genetics-there are so many different options. rather than one treatment fitting all, it is a personalized approach to cancer therapy. we have so many tools available at cancer treatment centers of america. this is what attracted amy to our center all the way from new york. cancer is what they deal with every day. these were people who were experts in their field. and for us that was the best choice. learn more about our breast center at cancercenter.com/philadelphia appointments available now.

pink's performance with the flu. >> the super bowl selfie kid. >> super bowl sell fees. >> here he is. >> i've got to see the selfie. >> as philly goes nuts. and big food fight. the proposal smack in the middle of the chaos. and look, it is super bowl melania. then bachelor's mystery. how did this contestant end up on a missing