Jonathan vigliotti is there. Reporter romaine lettuce from salinas, california is once again being investigated as a possible source of an e. Coli growth break. Eight people have fallen ill, one of them suffering kidney failure. The centers for Disease Control and prevention is still investigating what exactly in Fresh Express sunflower crisp chopped salad kits is the source of the e. Coli, but it does contain romaine lettuce, which was contaminated with e. Coli in a large outbreak earlier this year caused by a different strain. Health policy expert says contaminated water containing animal feces often carries the bacteria. Lettuce is probably more vulnerable to contamination in part because it kind of has a lot of nooks and crannies. As an industry, we know we have to do more. Reporter Christopher Velez is president of a trade Group Representing romaine growers and shippers in salinas. He agrees with the cdc to avoid the Fresh Express product and clean areas where it was stored. As a consumer, somebody who eats lettuce from this region, how concerned are you when you hear not just one, but now a second e. Coli outbreak . I think for us, we have to look very critically at the advisory and what we know. Wed advise anybody in the public to follow that. Communities across the south are grappling over what to do with their statues of confederate heroes. In richmond, virginia, the capital of the confederacy is no different. It has a whole row of confederate monuments. But now a new statue with a very different message has been installed just a few blocks away. Anthony mason spoke with the artist. Reporter the war heros of the confederacy line richmonds monument avenue. Generals robert e. Lee, stonewall jackson, and jeb stuart. There is a type of ceremony that surrounds the valorization of these guys. Reporter a few years ago californiaborn kahinda wiley came facetoface with them for the first time. What did you see . I saw a spectacle that felt dreadful. I mean, it almost felt like it was designed to be menacing. To be in a black body walking through the streets of richmond and to see something that signifies the enslavement of your people, thats a little bit more heavyduty. Reporter the 42yearold artist decided to answer with a monument of his own. On tuesday, wileys 27foothigh bronze sculpture of a young black man on horseback was unveiled at virginias museum of fine arts. The new statue was celebrated by virginias governor ralph northam, who was mired in a black face scandal earlier this year. Today we say welcome to a progressive and inclusive virginia. Reporter and by rich months mayor, levar stony, who wanted the confederate statues removed. I dont believe they should be on grand boulevards like monument avenue. I think they should be found in museums and cemeteries and battlefields. Reporter thousands came out for the unveiling, many standing in front of the neighboring headquarters of the united daughters of the confederacy. Wiley, whos best known for his portrait of president obama for the National Portrait gallery. This is your sister . It is in fact my sister, yeah. Reporter made his name with epic paintings of ordinary people. Youve put her in a suit of armor. Thats right. This is part of a body of work thats about skin. Armor is sort of a strange standin for race there in as well. This skin that is at once so important but a burden. Reporter he has also used the horse in his earlier work. What drew you to that imagery . My work is all about power. Its about the negotiation of power, the depiction of it, those who have it, those who dont. Reporter rumors of war, as his new sculpture is called, made its debut this fall in new yorks times square. I wanted it to be at center of ooh global conversation. And when you think about america in lights, its times square. Its where the world comes to see america. Who is this man . Well, he is anyone and no one. I think it meant a lot to me to be able to say that in the 21st century, we as a society can say yes to a monument to a young black man in a hoodie. Reporter then last week it was disassembled and loaded on the flatbeds for the trip to richmond. To take its permanent place near the confederate monuments. The answer to negative speech is more speech. Its positive speech. It makes sense to have something exist on a monumental level, because this is a monumental conversation that this country needs to she wanted to move someplace warm. But he wanted snow for the holidays. So we built a snow globe. Ill get that later. Dylan but the one thing we could both agree on was getting geico to help with homeowners insurance. What . Switching and saving was really easy i love you what . Sweetie hands off the glass. Ugh call geico and see how easy saving on homeowners and condo insurance can be. I love her sleep this amazing . Thats a zzzquil pure zzzs sleep. 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Well, chip reid visited a farm in virginia where theyre working to bring the chestnut back. Reporter the american chestnut tree was once an american icon, a National Symbol of strength and a cornerstone of the appalachian economy. But today it is functionally extinct. Every year it produces bushels of nutritious chestnuts, supported wildlife like weve never seen since, and it also sustained the people. Reporter a blight, an aptly named type of fungus was brought to this country through trade at the turn of the 20th century and designated four billion trees in just five decades. Those that remain in the wild cannot reproduce on their own. Rex mann is a retired forest ranger who began volunteering with the American Chestnut Foundation over 20 years ago in hopes of giving the american chestnut tree a fighting chance. Now for what researchers say is the first time in american history, a functionally extinct tree species could be restored. What is the research that you are doing now . We as a science team are trying to develop an american chestnut tree that has enough blight tolerance that it can survive in the forest. Reporter researchers at the American Chestnut Foundation are breeding the american chestnut with the chinese chestnut, which is resistant to the blight. Sometimes they dont work. Reporter after the trees are bred, their buries, which house the nuts are harvested. But in there is a pollinated bu burr. Yep, yep. Reporter inside each one of these burrs are two or three chestnuts. They will be planted, and this is just one step in a long complicated process that they hope will eventually lead to a blightresistant american chestnut tree. But before they are planted and bred again, the burrs must be sorted. Then the viable nuts will be planted and injected with the blight to see which ones survive. The young trees that do well will be bred again. Tell me why it is so important to save the american chestnut tree. Well, it was a way of life in the appalachians and the eastern u. S. Forests. Reporter the Mighty American chestnut also bears rot resistant timber, which provided homes and industry to the nations heartland, and with it hope for those who had little. Those people were poor. In the fall of the year, they would gather chestnuts by the sacksful, carry them down to the Country Store and swap them for shoes for the kids. And there were train loads of chestnuts going to all the major cities and people bought them and roasted them on the street. Reporter now chestnuts roasting on open fires across america are of the larger less sweet european and asian varieties. We want a tree that is competitive in the forest, grows tall and replaces the american chestnut in that great form and timber quality. Reporter if researchers can rescue the tree, the american chestnut could serve both as a model for protecting other vulnerable plant species from insects and disease and as a weapon against climate change, capturing more carbon from the air thanks to its larger size. Were blazing a trail for how people who care about this can restore the other trees were losing. I think thats really the big story. Reporter chip reid, meadowview, virginia. Overseas they have come up with a unique way to recycle plastic, turn it into roads. Roxana saberi reports from lockerbie, scotland. So this look likes regular asphalt, but its not. Sounds like regular asphalt. Feels like. But its not. Its made of recycled plastic. Reporter thats right. The driveway at Christopher Boyles 17th century english estate is paved with 21st century plastic trash. It has all the ecological, environmental benefits, but to the ordinary punter, you dont see any difference at all. Reporter the difference is that it used the equivalent of 750,000 plastic bags and bottles ground up, along with other hard to recycle plastic. This is our cheetos bags, our bottles. Bottles, bottle tops, you name it. Reporter the plastic flakes are mixed at this plant in scotland with what Toby Mccartney calls a secret ingredient. Bag it up, and off it goes to the asphalt manufacturers. Reporter that blend replaces some of the black oilbased bitumin that keeps regular roads together. For every ton of bitumin we replace, we save a ton of carbon emissions. So for the environment, its the way forward. Reporter mccartney says its the best way to tackle the worlds plastic waste, 90 of which ends up as litter and landfill. Now his country mcgrever is paving plastic roads across the world, from highways in england to this street in san diego where the firm is also opening a new factory. So is this a longterm solution to the worlds plastic problem . I believe so. Its the stuff that nobody else can use. Its destined for landfill or incineration. We can take all of that plastic and recycle it in our roads. Reporter environmentalists like libby peek are cautiously optimistic. Theyre potentially lower carbon than conventional roads. Thats very positive. What we dont know yet is how much microplastics these roads might shed. There are no microplastics present in any of the roads that go down. Reporter but shouldnt people just stop using plastic . I dont know if thats ever really going to happen. Reporter mccartney says for now, plastic pavement can curb the worlds plastic epidemic, a sentiment shared by boyle who says since he laid down his plastic driveway three years ago, its held up fine. Why you think more people havent paved their roads with plastic yet . Im not sure very many people know about the technology at all. Reporter you think they sh ld . Defin for years now weve been following the story of a secret santa who brings christmas cheer to people he doesnt even know. Well, Steve Hartman found him again this Holiday Season on the road. Good morning, how are you doing . Reporter to many passengers, this was like boarding a bus. Today im working for secret santa. Reporter too crazy town. He says secret santa. What . This is a dream or something. Reporter but this was no dream. Its real. Reporter these were real g e merry christmas. Reporter secret santa is an anonymous wealthy businessman who every year travels the country giving out 100, 200, sometimes 300. No yeah reporter to random stranger. Its impossible. Its impossible. It is possible. Its true. Reporter he usually finds his targets in thrift stores. Thank you so much. Reporter but this year im secret santa. Reporter secret santa recruited some elves from the Milwaukee CountyTransit System to do at least some of his giving. Were here because of you. Reporter he chose the milwaukee drivers because theyre always doing kind deeds. Whether its stopping the bus to fetch a pair of lost childrens shoes, helping a turtle cross the street, or rescues a child out wandering alone, there is a real culture of kindness here, which secret santa says makes them perfect accomplices. Were going to be on the biggest sleigh weve ever had, and the magic is going to be like gold dust flying across the city. Im working for secret santa, and you are the luckiest people in the world. Reporter for the rest of the day this is for you. Are you serious . Reporter five different drivers gave out thousands of dollars worth of 100. Thank you, thank you reporter no doubt the money was appreciated. But as always, this was about so much more than money. A benjamin cant buy this much euphoria. No, what overwhelmed most people was the unconditial kindness. Happy holidays. Reporter and for the drivers who rarely get hugs, it affected them almost as much as the passengers. It was a great experience. Its going to stick with me the rest of my life. Yes. It was awesome to be part of something so big. If you ever feel down, if you ever feel a little depressed and you want the solve your problem, go out and do something kind for somebody because when you do that, youre uplifting yourself. Give me a hug. Reporter next stop, best holiday ever. Steve hartman, on the road in milwaukee. Have one of them bus drivers drop that secret santa off here. He can stop by any time. That is the overnight news for this thursday. Be sure to check back later for morning news and of course cbs this morning from the cbs Broadcast Center in new york city, im errol barnett. Its thursday, december 12th, 2019. This is the cbs morning news. Late night impeachment debate. Members of the House Judiciary Committee make their case ahead of a key vote later today. They dislike us so much theyre willing to weaponize the government. If we do not respond to president trumps abuses of power, the abuses will continue. Surveillance video shows the moment two shooters jumped out of a van in jersey city and opened fire on a kosher market. Was it a targeted hate crime . And active volcano threat. As the death toll rises, rescue crews are still searching for at least eight missing people on a least eight missing people on a new zealand island