Im really going to need your help. Reporter the nbc marist poll shows sanders coming on fast in iowa and even outperforming clinton in the general election. In a theoretical matchup with donald trump, sanders leads in iowa by 13 points. Clinton leads by 8. In a matchup with ted cruz, sanders leads by 5 points while clinton trails by 4. We have an excellent chance to win here in iowa. Reporter sanders told the states largest newspaper that clintons new attacks on him show shes nervous and panicky, but hes doing the exact same thing. Will she change her mind and join me in making sure that we can significantly raise the benefits for lowincome people on Social Security . You know, these polls go up, they go down. Reporter on face the nation sunday, the former first lady downplayed both the numbers and trumps recent comments about her husbands infidelities in the 90s. They can say whatever they want. More power to them. I think its a dead end, blind alley for them, but let them go. Reporter clinton leads in later states like South Carolina by up to 40 points, though she enjoyed a similar lead in iowa not that long ago, scott. Nancy cordes on the campaign. Nancy, thank you. Today in london, a muslim preacher known for his fiery antiwestern sermons went on trial. Anjem choudary is charged with recruiting for isis. Elizabeth palmer has this. Reporter on his way into court, britains bestknown radical islamist claimed it was all a setup. The only reason im standing here today is because im a muslim. Reporter choudary once praised the 9 11 hijackers and for years has denounced western rights and freedoms. Down with democracy reporter after the rise of isis in 2014, choudary sounded like a salesman for life under isis rule. Everybody has free food, clothing and shelter. Close your eyes and imagine a society. You havent got a house . Heres your house. You dont have electricity, heres free electricity. Reporter eventually, choudarys lectures in person and online got him arrested. On the eve of his trial, he sat down with us to insist he never directly recruited for isis. Theres no record of me ever saying to go abroad and to live in the islamic state. Reporter did you have to . Just by saying this is a muslim state and it is a place run under sharia law, is it an implicit endorsement . No, it isnt, in fact. Reporter but the British Government disagrees. It believes choudarys campaigning contributed to the stream of hundreds of britons who went to syria to fight. One of them was siddhartha dahr, formerly choudarys close associate. He went to syria in 2014 and is now widely believed to be the man behind the mask in isis latest execution video. People of britain, know that today your citizenship is under our feet. Reporter Anjem Choudary faces ten years in jail if convicted, but the broader question is whether this british crackdown on recruiting will slow the flow of foreign fighters that isis depends on. Liz palmer in the london newsroom tonight. Liz, thanks. Now in technology, the next generation of cars may be able to avoid most accidents automatically. The federal government is proposing a new Technology Regulation for carmakers, and kris van cleave has more from the detroit auto show. Reporter the newly proposed regulation will require technology to be standard in all new vehicles sold in the u. S. Experts say it could be as revolutionary as seat belts and air bags. Once finalized, the rule will call for vehicletovehicle communication, or v2v, to be phased in over a few years. Our goal is to see this technology put in place as soon as possible. Reporter secretary of transportation anthony fox. Over the years weve had about 33,000 fatalities a year on our highways. If the technology then can substitute for human judgment and help us avoid those crashes. We think we can get as much as an 80 reduction. Thats a huge change. Reporter as this department of transportation animation shows, v2v uses Technology Similar to wifi to link cars near each other on the road, allowing them to share information like speed and direction several times a second. So if the vehicle several cars ahead stops abruptly, your car would know almost instantly and warn you to slow down. It may also be able to talk to infrastructure like stoplights, telling the driver how long until a light changes. V2v builds on Technology Like blind spot detection and automatic braking already found in some vehicles. Ford ceo mark fields. Do you think this is the type of Technology Customers will pay for . To a certain extent i think they will, but well see what the future brings. Were working very hard toward bringing and continuing to have more and more of those features in the vehicle. Well see what the consumer decides. Reporter the Auto Industry supports the move to v2v technology, but there are some unanswered questions, how do you protect cars against hacking and what about all that data now being collected by our ever smarter cars. Kris van cleave in motor city. Kris, thank you. New recommendations for when kris, thank you. New recommendations for when women should get mammograms, parking is hard to find. Seems like everyone drives. And those who do should switch to geico because you could save hundreds on car insurance. Ah, perfect. Valet parking. Evening, sir. Hello heres the keys. And, uh, go easy on my ride, mate. Hm, wouldnt mind some of that beef wellington. To see how much you could save on car insurance, go to geico. Com. Ah car alarm sounds its ok dayquil liquid gels and go. Hey buddy, lets get these but these liquid gels are new. Mucinex fast max. Its the same difference. These are multisymptom. Well so are these. This one is max strength and fights mucus. That one doesnt. Uh. Think fast you dropped something. Oh. Ill put it back on the shelf. New from mucinex fast max. The only cold and flu liquid gel thats maxstrength and fights mucus. Start the relief. Ditch the misery. Lets end this. A Government Medical panel issued new guidelines for when women and how often women should be screened for breast cancer. We asked dr. Jon lapook to fill us in. Look straight in here. Reporter today 44yearold paula peirera had a mammogram. Shes done that every year since turning 40. Between me and my doctor, weve decided that i need to stay with having my yearly screening mammography. Thats for my peace of mind. Reporter the u. S. Preventative Services Task force says women of average risk should make an individual choice about whether to screen between the ages of 40 and 4 and be screened every other year between 50 and 74. Studies suggest screening mammography is about twice as effective at saving lives in women 50 to 59 as in women 40 to 49. Still, in that younger age group, about four deaths are prevented for every 10,000 women screened over ten years. Some doctors worry about the message these new guidelines may be sending to younger women. Dr. Freya schnabel is the director of breast surgery at nyu langone. We have to remember that women in their 40s and below still get breast cancer. Reporter in your view, are we overemphasizing now the potential harm, including worry on the part of the patients . I think the worry issue is something that particularly, in my opinion, is very troublesome as a reason to avoid mammography. Reporter why . I think its patronizing. Adult women are capable of understanding that sometimes we all have to do things that were not crazy about, but theres a longterm benefit. Reporter for women 75 and older, there was not enough evidence to make a recommendation, so, scott, the decision will rest on factors like a womans risk and general health. Dr. Jon lapook, thank you, jon. And dr. Schnabel, the woman you just heard from on our facebook page. The cbs overnight news will be right back. Today wall street snapped a losing streak as stocks rallied in the last minutes of trading. The dow was up 52 and change. But oil slipped below 32, the lowest since 2003. Theres an oversupply and the second largest consumer, china, is slowing down. Our Research Department tells us that 114,000 americans have lost their jobs in the oil patch in 2015. A woman suspected of robbing Jewelry Stores in five Southern States was in court in atlanta today. The feds say 24yearold abigail kemp is the woman on Surveillance Video accused of tying up employees at gunpoint and taking more than 4 million in jewels. Kemp was arrested friday. The fbi says cell phone records place her at each crime scene. ,,,,,,, its the miracle of compound interest. Growing interest in powerball but no winners has pushed the jackpot to an alltime record nearly 1. 5 billion. The next drawing is wednesday. Heres jericka duncan. Reporter playing a game youre likely to lose may sound coterproductive, but even the slimmest of chances to become one of the wealthiest people in the world do you feel lucky today . Reporter has two Million People per hour trying to cash in on a dream. What would you do with the money . Id probably save some for my family and no one really needs that much money, so theres a lot of good causes to share it with. Reporter gambling may be legal in nevada, but powerball isnt. So thousands have traveled over the california border to buy tickets, even canadians are heading south to get in on the game. The powerball has also provided a business boom to convenience stores. Mukesh sahi says his sales have tripled. People buying soda, products, cigarettes. The big mistake lottery winners make is they rush. Reporter attorney Michael Kosnitzky has been hired by a dozen lottery winners over the past decade. He says its not only hard to win it but its hard to keep it. How many of them are still millionaires . All of them. Reporter but a 2012 study showed 70 of lottery winners end up bankrupt. Kosnitzky recommends taking the projected lump payment of more than 860 million, hiring an accountant, a tax attorney and a financial adviser. After all, they dont make mattresses big enough to hide this fortune under. Jericka duncan, cbs news, new york. And thats the overnight news for this tuesday. For some of you, the news continues. For others, check back with us a little later for the morning news and of course, cbs this morning. From the Broadcast Center in new york city, im scott pelley. From the Broadcast Center in new york city, im scott pelley. Captions by vitac www. Vitac. Com this is the cbs overnight news. Welcome to the overnight news. Im don dahler. The tributes are growing in all corners of the globe after the death of rock star and trendsetter david bowie. He died sunday after an 18month long battle with cancer, ending a five decade career that spanned music, film, stage and fashion. Fans lit candles and left flowers outside his home in new york city. And in london, where he was a hero to millions, including Prime Minister david cameron. Genius is an overused word. But he was a genius. For someone my age, he provided a lot of the soundtrack of my lives, from space track odd question to the strains of heroes. Reporter bowie turned 69 last friday, the same day he released his final album black star, which is now rocketing up the pop charts. It is the top selling album on i tunes. Mark phillips looks back on his life. Reporter for a man known for so many images, this will be the last and enduring one of david bowie, the one from his latest album released last friday on his 69th birthday. Look up here, im in heaven ive got scars that cant be seen reporter the deathbed imagery and lyrics seemed to suggest he not only knew what was coming, he turned his death into his last artistic event. Look up here, man, im in danger reporter and this may be the first image of bowie many remember. His was a career that people first began to notice back in 1969, when people were being landed on the moon. That stopped, but bowie continued. Theres a starman waiting reporter he didnt just release songs, he became the persona that performed them. Ziggy star dust in the 70s. And not just the songs, of course, but the everchanging look. As he told charlie rose back in 1998, bowie was always about more than just the music. Do you think youll be known first as a musician. No, i find the idea of having to say that im a musician in any way is an embarrassment to me, because i dont really believe that. I always felt that what i do is use music for my way of expression. I dont believe im very accomplished at it. Reporter others will disagree. Bowie reinvented himself as he went along. With fame he brought what he called plastic soul as a White British artist to soul train. Sean penn says he has no regrets about his interaction with Joaquin El Chapo guzman. Penn had interviewed el chapo in october, leading to his capture. There are efforts under way to extradite el chapo to the United States. Manuel bojorquez is outside the prison where hes being held, the same prison he escaped from in july. Reporter according to a u. S. Law enforcement source, authorities worry that el chapo would bribe his way to another escape. Sean penn said he agreed to let el chapo review the article before being published but the drug lord did not ask for any changes. This picture was taken as proof of the secret meeting between the Academy Award winner and a drug cartel kingpin. In a lengthy Rolling Stone article, sean penn said he met with guzman last october, deep in the mexican jungle. He describes him as unapologetic and he has indisputable charisma, saying how much heroin he sends around the world, including the United States, is maddening. Reporter penn says they met for seven hours and ate tacos at a picnic table. They agreed to reconvene eight days later. But mexican authorities rated that hideout shortly after that meeting. Instead of meeting again in person, penn sent el chapo questions that he answered on camera with the help of an sper preer the. Its a reality that drugs destroy el chapo says in spanish. Where i grow up, there was no other way and there still isnt a way to survive. The 17 minutes of footage was given to mexican actress kate dell castillo. She gained el chapos attention and perhaps his trust when she tweeted at him in 2012, writing i believe more in El Chapo Guzman than the governments that hide the truth. Authorities arrested him friday. They say he initially fled through the sewer system after a shootout. He was apprehended in a stolen car. The capture of el chapo is shining the spotlight on the actress kate del castillo. El chapo was apparently one of her biggest friends. You must have a very beautiful life. Many americans know that kate del castillo dont interrupt me. Its impolite. And breaches in etiquette make me want to throw things. A mexican crime boss. Next time hire someone that doesnt work for me and isnt still mad at you for ratting him out. Two years later, she starred as a drug lord in the queen of the south. I would say that shes kind of like the Jennifer Lawrence of mexico. She is known for being a strong, powerful latina woman. In 2012, she posted an open letter on twitter, urging el chapo to burn all those whore houses, adding you would be the heroes of heroes. That caught el chapos attention and the two reportedly began communicating after that post. Del castillo wants to make a movie about el chapos life, arranging the interview with sean penn. And even serving as the translator. Del castillo has not been arrested or charged with any crimes over her its not always as easy for me as it is for him. Its easy for me cause look at her. Aw. So we use ky ultragel. It enhances my bodys natural moisture so i can get into the swing of it a bit quicker. And when i know shes feeling like that, it makes me feel like were both. When she enjoys it, we enjoy it even more. And i enjoy it. Feel the difference with ky ultragel. politely wait, wait, wait you. You have to rinse it first. Whats that, alfredo . No, that can go in. No it cant what are you, nuts . Thats bakedon alfredo. Bakedon . Its never gonna work. 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Bill whittaker was invited to visit russias Main Air Base there for 60 minutes. Reporter this was the first face we saw after landing. Thats syrian president bashar al assad. This once was a syrian airport. Since the summer, the russians have built barracks, brought in 4,000 personnel, paved roads, rolled in truckloads of equipment and munitions, erecting a bit of russia in the heart of assad controlled syria. This is mostly friendly territory. But the russians arent taking any chances. Helicopter gunships constantly patrolled the perimeter. They took us out along newly extended runways to watch a steady series of planes taking off. The roar was deafening. The russians invited about a dozen news organizations on this tour of the air base. They especially wanted us to take note of their newest fighter bomber, the su34. Our russian guide in syria, Major General igor kanashankov, is chief spokesman for the ministry of defense. Over the previous 4 hours, he said, 320 furthers and 34 Armored Vehicles were destroyed. Independent monitoring groups told us some of the planes we saw taking off did bomb isis targets, but most bombed more immediate threats to the assad regime, groups like the