captioning sponsored by cbs >> glor: breaking news tonight. the president's top economic adviser is out. also tonight... >> the statements coming out of south korea and north korea have been very positive. >> glor: the north is reportedly ready to talk about giving up its nuclear arsenal. >> i really believe they are sincere. i hope they're sincere. we're going to soon find out. >> glor: another nor'easter is hours away from hitting areas without power since the last one. the opioid epidemic worsens, with a dramatic rise in overdoses. a cbs news investigation: a key component of your cell phone may have been produced by child labor. what has three wheels and flies? we'll show you. and his granddad was president of the united states 173 years

ago. >> but i'm still here. ( laughs ) this is the "cbs evening news" with jeff glor. >> glor: good evening. zeal more on the possibility of breakthrough talks between the u.s. and north korea in just a moment, but we're going to begin here tonight with late news from the white house. late today, the pretty chief economic adviser, gary cohn, resigned. here's nancy cordes. >> everybody wants to work in the white house. they all want a piece of that oval office. they want a piece of the west wing. >> reporter: just a couple of hours after president trump touted his team's moral, the size of his team shrank by one. chief economic adviser gary cohn was sometimes an uneasy fit for the trump administration. the former president and c.e.o. of goldman sachs is a registered democrat who threatened to resign the first time last summer when the president refused to condemn white supremacists marchin marching in charlottesville, virginia.

>> you had a group on one side that was bad, and you had a group on the other side that was also very violent. >> reporter: cohn decided to stay and went on to play a key role in crafting the g.o.p. tax cut plan, which passed in december. he said he was looking forward to tackling an infrastructure bill next, but then, president trump made this surprise announcement last week: >> we'll be imposing tariffs on steel imports and tariffs on aluminum imports. >> reporter: cohn, and most congressional republicans, advised against twarning the move could spark a trade war, but he could not change the president's mind. in a statement today, cohn said, "it has been an honor to serve my country and enact pro-growth economic policies to benefit the american people. i am grateful to the president for giving me this opportunity." >> glor: and so, nancy, how is the white house reacting tonight? >> reporter: well, they've released a statement from the president thanking cohn, calling human a rare talent. but this is a blow, jeff.

as recently as last friday, the white house press secretary sarah sanders was insisting to reporters that cohn would not be stepping down over the president's surprise move on tariffs. >> glor: all right, nancy cordes, thank you very much. and now to what could be a major development with north korea. kim jong-un is reportedly ready to open talks with the u.s. about scrapping his nuclear arsenal. this report comes from a south korean delegation just back from talks. major garrett is at the white house with more on this. major. >> reporter: jeff, good evening. top officials from south korea and japan are expected in washington by week's end to discuss possible negotiations. now, the white house will not say if the president is open to direct talks with north korea, but that possibility, fanciful mere months another now appears real. >> one way or the other, we have to do something. we cannot let that situation fester. we cannot thereto happen. >> reporter: in an oval office meeting with the swedish prime

minister, president trump expressed cautious optimism about north korea's apparent willingness to negotiate. do you believe the north koreans are prepared to give up nuclear weapons? >> we're going to see. we're going to see. they seem to be acting positively. i think that their statement and the statements coming out of south korea and north korea have been very positive. that would be a great thing for the world, great thing for the world. so we'll see how it all comes about. >> reporter: you sound more optimistic about this situation. >> i'd like to be optimistic, but i think maybe this has gone further than anyone's taken it before. hopefully, we'll go in the very, very peaceful, beautiful path. we're prepared to go whichever path is necessary. >> reporter: following a meeting in pyeongchang, between north korean leader kim jong-un, and south korea officials, south korea said in a statement the north expressed its willingness to hold a heartfelt dialogue with the united states on the issue of denuclearization and normalizing relations. the statement also said the north would halt its nuclear

program while negotiations were ongoing. later, at a press conference, the president was asked why kim jong-un may have had a change of heart? >> me. no, i think that-- nobody got that. i think that they are sincere, but i think they're sincere, also, because the sanctions and what we're doing with respect to north korea, including, you know, the great help that we've been given from china-- and they can do more. but the sanctions have been have, very strong and very biting. >> reporter: tough sanctions aside, it's been mr. trump's tough rhetoric that have helped stoke fears of a conflict on the korean peninsula. >> they will be met with fire and fury. rocket man is on a suicide mission for himself. >> reporter: ian bremmer is president of the eurasia group and a cbs news consultant. >> on north korea there's no

question that trump has moved the need frel beijing, and therefore, now, from pyeongchang, in a way that neither of the previous administrations democratic, or republican, have been able to do. >> glor: major, on capitol hill today, the director of national intelligence did say we have seen this movie before. what did dan coats mean by that? >> reporter: what he meant is for u.s. presidents, the problem hasn't been negotiating with north korea ear reaching agreements. it's been north korea ignoring those agreements, and then advancing its pursuit of nuclear weapons, and now accelerating its pursuit of ballistic missile technology expect that's why, jeff, the u.s. said today it will continue with planned joint military exercises with south korea in a couple, three weeks. >> glor: major garrett, thank you very much. and now to margaret brennan, our forbe affairs correspondent. margaret, there's a lot of skepticism about what the north koreans are saying now via the south koreans. what is the significance here? >> reporter: well, jeff, this is the clearest diplomatic

outreach we have seen so far, and it would be significant if north korea offered to go beyona actually tieerred give of its arsenal or, s, down its nifl but so far, t u.s. has not signh koreans have paused their development. so the north has a pattern of breaking past greements, but also because they question whether u.s. ally south korea may be overeager for the u.s. to begin these talks. >> glor: in the past as you know the north has used talks a cover to advance its weapons program. is there anything the culz do in this case to prevent that this time? >> reporter: that's what the u.s. position so far is diplomacy is not cost free. the trump administration plans to continue to tighten sanctions, target them to cut off fuel other and resources that power north korea's weapons program. they will not simply lift sanctions as a reward for talking. the hope is to avoid having

north korea use the cover of negotiations while they continue their weapons program. >> glor: margaret brennan, thanks. the northeast is bracing for round two tonight, a second major storm in four days. heavy snow, rain, and wind will move in overnight. amtrak has cut back service, and airlines are waving change fees. more than 150,000 homes and businesses are still without power from the last storm. demarco morgan is on the massachusetts coast tonight. >> reporter: this footage shows the coastal homes at risk after last week's four-day nor'easter left a gaping hole in the seawall. >> all that happened within two hours. >> reporter: robyn chiminiello moved here 35 years ago with her late husband. >> it's devastating, you know. and there's nothing you can do. >> reporter: more than 300 homes along the coast are in danger of being washed away with a seawall built in 1954 as their last defense. >> i think this is a reminder of how powerful the sea is.

>> reporter: duxbury fire captain rob reardon: >> we had four high tide cycles that were tremendous, cause aid tremendous amount of flooding around us, all the way through these neighborhoods and up the coast. >> reporter: as you can see here behind he there are huge chunks of concrete missing from the seawall up and down the coast. now there's a race against time before the next storm arrives. excavators have been working overtime to try and stop the water from gushing in. just take a look at this water mark right here. you can see just how high the floodwaters were earlier this afternoon. now they have gone down dramatically, again, as residents here brace for round two. jeff. >> glor: demarco morgan in marshfield, mass. demarco, thanks. meteorologist eric fisher is following this storm. eric, this storm is different mowp bad is it and what's the timing? >> well, this storm is not quite as potent as what we saw last week, but if we didn't have last week, we could consider it, certainly, a major nor'easter. just getting developed near the coastline tonight. major storm warnings out from philadelphia across all the interior section of new england,

as well as new york state and some of the same places that saw big snow last week will see big snow again with this storm system. that rain-snow line will be right around the i-95 corridor as it races off to the north and east throughout the day tomorrow. our biggest snow amounts will be just outside of 95, and we could see a couple of feet of snowfall again in new york state, some of those towns five feet of snow in five days. we zoom in a little closer, take a look at some of the sphaeps new york city on the age, 4-8 inches. 5-10 in hartford. 4-8 in fill. boston 1-3 just west of the city. we're going to see strong winds, and again not quite as intense as last week, but, jeff, as we saw a lot of those seawalls so damaged it won't take as much wind to have an almost equal impact with this storm. >> glor: amazing to think about five feet of snow in five days. thank you, eric fisher. new numbers out today show america's opioid crisis is getting worse. in 45 states, emergency room visits for opioid overdoses rose 30% in a year.

dean reynolds has more on this. >> reporter: according to the centers for disease croacial the nation is in the grip of a fast-moving epidemic for which there are no easy solutions. illinois is one of the hardest hit states with nearly a 66% increase in suspected opioid overdose visits to the e.r. last year. dr. tom scaletta is an emergency room physician in naperville, illinois, where they treated 500 opioid-dependent patients last year. you see the fentanyl, as well as heroin and... >>ual u.p.s., we see a little bit of everything. >> reporter: increases in other states across the nation are even more wip pennsylvania, 80%. delaware, almost 105% in suspected overdoses treated in emergency rooms. dr. anne shiewket is acting

director of the c.d.c. >> we have seen indpleess every region, increases in men and women, increases in all adult age groups. >> you can hear me? >> reporter: according to the c.d.c., overdoses kill about five people everyone hour across the u.s. >> the potency and toxicity of i high right now. and so we think there probably is not an using drugs, but there's an increase in the danger associated with a single use. >> reporter: erin winier is the director of addiction services at lyndon oaks behavioral health. >> we know that up to 90% of people will relapse in the first year. going through rehab, it's a very ics very strong. not.porter: do you expect it >> if o little sign that the opioidepid.

and emergency rooms across the country are bracing for a night of the frantic efforts to keep the victims alive. jeff. >> glor: dean reynolds tonight, thank you. up next here, cbs news investigates how children are involved in dangerous mining for a key component in smartphones, electric cars and laptops. and later, the mayor of a major city resigns after an affair with her body guard. and now there's a new way to smooth. introducing new venus platinum. a premium metal handle boosts control... to reveal up to 100% smooth skin. venus hey, hi. you look good. thank you, i feel good. it all starts with eating right. that's why i eat amazin prunes now. they're delicious and help keep my body in balance. i love these. sunsweet amazin prunes, the feel good fruit.

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>> glor: it is possible your cell phone or laptop is powered by child labor. tonight, cbs news investigates the mining of cobalt used in many lithium ion batters. more than half the world's cobalts come from the democratic republic of congo, and 20% of the cobalt there is mined by hand, often by young children. debora patta saw the conditions firsthand. >> reporter: ziki swaze has never been to school. he has no idea how to read or

write, but he is an expert in washing cobalt. "my parents are dead," he told us, "and i stay with my grandma." so you need to make money for your greene? >> yes. >> reporter: there are thousands more children like 11-year-old ziki. barely 10 years old, these kids lug heavy sacks of cobalt to be washed in rivers. and even those too young to work spend much of their day breathing in toxic fumes. officials make a big show of chasing children away saying nobody under 18 is allowed to work here, but, clearly, that is not the case. we asked these companies whether chd coild-mineir products. all acknowledged problems with the supply chain, but they say require their suppliers to followpo investigation shows just how complicated it is to trace child-mined cobalt.

leaving the mines, sacks are already mixed up without labels. the children's cobalt is brought here to this market where it is bought by a chinese company for extremely low ouamater i offered to sell aoadm this man told us that the chinese traders here bought all the cobalt and sold it mainly to a mine owned by a global chinese giant. the company said they no longer buy from that market and have a detailed program to eliminate child liesh from their supply chain. but for children like ziki&4 swaze, nothing has changed. hement befe asleep,eturns hom

what do you about? >> "school," he answers simply, just a dream for this child. debora patta, cbs nc oflor: wwes have something to celebrate. most pills don't finish the job because they don't relieve nasal congestion. flonase allergy relief is different. flonase relieves sneezing, itchy, watery eyes and a runny nose, plus nasal congestion, which pills don't. flonase helps block 6 key inflammatory substances. most pills only block one. and 6 is greater than 1. start your day with flonase for more complete allergy relief. flonase. this changes everything. what are the ingredients is it the places youo?

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after nine days and 277,000 students left at home, this strike has motivate other teachers across the country to follow suit. oklahoma teachers could strike as early as next month. jeff. >> glor: meg oliver in the middle of the celebration. meg, thank you. the mayor of nashville resigned today and pleaded guilty to felony theft. this is her mug shot. megan barry was a rising star in the democratic party. but in january, she admitted to an affair with the former head of her security detail. all the while he was racking up overtime. both have agreed to pay tens of thousands back to the city. >> it's fantastic! >> glor: 50 years after the film "chitty chitty bang bang," the flying car has arrived in real life. this is the palvee liberty making its daview today at the geneva auto show. it can be driven on streets as a car or a rotor and propeller can be unfolded so it can fly like a

giro copter with a top speed of 112 miles an hour. they are available next year with a base model sticker price of $400,000, they'll be flying ou of showrooms, not. up nt here, chip reid tours the haunted haunts of america's tenth president.

. >> glor: some fun facts about john tyler. he was the latter half of a famous campaign the first v president elevate to the presidey on the death of the chiefve. the first parry in e 1844. and 174 years later, two grandchildren are still around.

chip reid met one of them. >> reporter: hi, mr. tyler. 89-year-old harrison ruffin tyler is the grandson of u.s. president john tyler, who was born in 1790. yes, you heard that right-- just three generations, president tyler, his son lyon tyler, and grandson harrison span almost the entire history of the united states. >> but i'm still here. >> reporter: we met harrison and his son, william, at president tyler's virginia estate. when you tell people that you are the great-grandson, and your father is the grandson of the tenth president of the united states, do they find it hard to believe? >> i find it hard to believe. i think it has to do with second wives. >> reporter: much younger second wives. here's how it happened. john tyler became president in 1841. he had eight children with his first wife, who died while he was in office office. at 52 he married 22-year-old julia gardner.

they had seven children fair total of 15, the most of any president. he was 63 when son, lyon tyler, was born, whose first wife also died. lyon, too, had a very young second wife. he was 75 when harrison tyler was porn. the sherwood forest plantation was renovated with young julia in mind. >> this was the ball room. john tyler's wife was 30 years his younger and she liked to party. >> reporter: liked to party. >> yeah, and this was designed for the virginia reel. ( cheers ) >> reporter: which was all the rage at the time. william says the shows haunted. >> that is the ghost. it's amazing. you can see the curls coming down, and a bon oat top of their head. it's clearly a young girl. there's no doubt. >> reporter: the ghostly image remained even after being painted over. president tyler's biggest accomplishment of was the annexation of texas, but political ambition does not run in the family. you never thought of running for

president yourself? >> nope. >> reporter: you wouldn't want that job? >> nope. >> reporter: would you want that job? >> no. i know better. >> reporter: instead of making history, they prefer to preserve it. chip reid, cbs news, charles city, virginia. >> glor: that is an amazing story. nice job, chip reid. i'm jeff glor. the news continues now on cbs

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