it's thursday, february 4th, 2016. this is the "cbs morning news." new hampshire is heating up. a war of words between republicans and accusations of cheating. democrats spend the quarterbackling who is more progress. florida's governor sounds the alarm on the zika virus. . countdown to kickoff. we look at the final prep and finishing touches before super bowl 50. good morning from the studio 57 newsroom at cbs news

good to be with you. i'm anne-marie green. the fifth democratic presidential debate takes place tonight in new hampshire, just five days before the new hampshire primary. bernie sanders and hillary clinton are expected to go after each other on what it means to be progressive. that is what happened during a town hall meeting last night. weijia jiang is in manchester, new hampshire. good morning. >> reporter: good morning. good morning to everybody. on the gop side, it's a contest for who is the most conservative. candidates in both parties are trying to one-up each other in their attacks, more aggressive than ever. at a town hall event in new hampshire last night, bernie sanders and hillary clinton continued to trade jabs over their progressive values. >> i do not know any progressive who has a super pac and takes $15 million from wall street.

that senator sanders has set himself up to be the gatekeeper over progressive. >> reporter: sanders is from neighboring vermont and is also dominating the attention of young voters like natalie wine winestein. with less than a week before the primary here in hamp, republicans donald trump and ted cruz remain lost in a war of words over who won in iowa. yesterday, trump accused cruz, who finished first in iowa, of stealing the state's caucuses, calling for the results to be nullified. >> it is no surprise that donald is throwing yet another temper tantrum or if you'd like, another trump tantrum. >> reporter: trump was late yesterday after his plane experienced maebleg issues and

he is expected to hold three events in new hampshire today where he is leading cruz in the polls. despite trump's demands, the republican party of iowa certified the results there. a spokesman says that is the rand paul and rick sanatorium dropped out of the race after just one contest. >> weijia jiang in manchester, new hampshire, thank you. the allowing certain crew members to opt out of zika-hit routes. chris martinez reports on the growing concern, now that zika has been transmitted through sexual contact.

around the world are paying close attention to a dallas case of zika virus transmitted through sexual contact. the patient was infected by a person who picked up the virus in venezuela. at an emergency meeting of health officials in latin america, the director of the pan american health organization said this brings new questions on how to handle the zika outbreak. >> it would bring a new dimension to the zika problem further. >> reporter: the mosquito-born virus is spreading through the latin america and the caribbean. health officials in the u.s. are not surprised to hear transmission through sex but emphasizes the disease is spread through mosquito bites. >> the bottom line for the public in the content nejts u.s. remains the same. if you're pregnant and you're thinking of traveling to a place

>> reporter: the virus has been linked to several thousands of cases of a serious birth defect called microcephaly and causes babies to be born with small heads. the world health organization has declared a global health emergency. researchers are working hard on a vaccine. we will talk to dr. tara narula about the growing concerns regarding the zeke rah virus. severe weather continues to hammer the south. no one was injured but strong winds sent residents running for cover. >> i heard trees crashing as i was going through my living room. i heard a big crash when a big pine fell across my tractor shed. i thought it was going to blow

>> storms also caused substantial damage in georgia. the cleanup continues in alabama, where several tornadoes hit tuesday. meanwhile, parts of nebraska and colorado remain very deep in snow. some areas got more than a foot and a half. honda is recalling another 2.2 million vehicles because of faulty airbags. the takata airbag inflaters no

explode and recalls no one has claimed responsibility. president obama made his first visit to a mosque in the united states. the president addressed what he called a hugely distorted impression of muslims during a speech at the islamic society of baltimore. mr. obama said muslim americans told him about their fears and the bias they faced and warned about the growing antagonism, particularly on the campaign trail. >> we are one american family and when any part of our family starts to feel separate or second class or targeted, it nation. >> the president said too often, muslims are blamed as a group for the violent acts of a few. the criminal case against bill cosby is going forward. a judge outside philadelphia rejected a bid wednesday to have sexual assault charges thrown out. cosby's lawyers pointed to a deal with a former prosecutor who said cosby would never face a criminal trial. the next hearing is in march.

forward. robert durst pleaded guilty wednesday to a weapons charge and agreed to spend seven years in prison. the 72-year-old real estate heir appeared frail in court in new orleans. the plea deal clears the way for his extradition to californiainst recommendations that child-bearing women avoid alcohol. this is the "cbs morning news." see me. don't stare at me. see me. see me. see me to know that psoriasis is just something that i have. i'm not contagious. see me to know that i won't stop. until i find what works. discover cosentyx, a different kind of medicine for moderate to severe plaque psoriasis.

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for him. a backlash over the government's recommendation for so allegations. bill bratton says the step is being taken to address a spike in crime in the transit system. he says half of reported crimes involve sleeping passengers. the "los angeles times" says a man is claiming a 63 million dollar california lottery prize.

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for free help, call 1-800-quit-now. forecast in some cities around the country. well, there is no sign, but this lexus is illegally parked. it's perched on a garage at a los angeles area home. the car went airborne after a driver suffered a medical problem and then crashed. the driver survived. the former pharmaceutical executive who raised a life saving drug by 5,000 percent will face congress today. martin shkreli's lawyer is telling him to plead the fifth. lawmakers are investigating soaring prescription costs and

criminal charges for securities fraud. on the cbs "moneywatch," the irs electronic filing goes offline. say good-bye to a sandwich staple. jill wagner is at the new york stock exchange with that and more. >> reporter: the irs is trying to get its electronic tax filing back up and running today. a computer failure shut down several tax processing systems, including the e-file system. the irs is still accepting returns from tax preparation companies. the outage could also affect tax refunds. stocks on wall street staged a late rally. after oil prices traded higher, the price of u.s. crude jumped 8%. the dow gained 183 points and s&p finished nine points higher but the nasdaq flipped 12 points. a worse than expected four quarters sent gopro plummeting. shares dropped 10% in after-hours trading after the company's earning fell far short of wall street's expectations. trading had to be temporarily

gopro's fourth quarter revenue is down 32% from a year ago. redstone resigned as executive chairman of cbs. he is 92 years old. his health is a focus of a month-long court fight. he will replaced by cbs chief executive leslie moonves. subway is saying good-bye to some sandwiches. 12-inch subs will cost you $6. subway says the new price is pgood to the end of the month and they say the price hike is due to rising costs. this morning, the rumor mill is swirling around amazon. it started when the ceo of a company that owns and managing malls said that amazon planned to open up to 400 physical book stores. then the mall company issued a statement saying the remarks were not intended to represent amazon's plans. no comments from amazon, which opened its first and only physical store last year in seattle. i was kind of excited. i love book stores.

story. but, you know, you can't say anything about amazon because the company is so hot. the stock is so hot. people lose it as soon as they hear the word amazon. >> we will see. >> jill wagner at the new york stock exchange, thanks a lot, jill. still to come, super bowl show time. we will take you live to california and show you how television crews are getting

sports game of the year. alright.. big smile! hey, honey! how'd it go? thanks, dad!

here's a look at today's forecast in some cities around the country. our fans don't know if they are catching a football or a cake that is shaped like a

>> oh! >> you guys hungry? there it is! >> if james corden's late late show test is any indication, the broncos will win the super bowl. the logic? the fan who caught the most footballs or football-shaped cakes would be an accurate predictor of a victory for his team. it's certainly a delicious way to make a prediction. well, both teams are practicing for super bowl 50, but another team is also getting the year. jamie yuccas is in san francisco and gets a sneak peek at what goes into broadcasting the nfl's ultimate game. jamie, good morning. >> reporter: good morning, anne-marie. let me put it to you this way. even working in tv, i had no idea how much production goes into the super bowl between cameras and graphics and all of the technology. it is a lot of hard work to pull

testing graphics is just a small part of what the cbs sports production crew does to get ready for the super bowl. i think when you walk into this room, what is impressive is all of the monitors. cbs sports executive vice president ken aagaard has worked on close to 20 super bowls. >> we have got all of the bells and whistles known to mankind in sports broadcasting. >> reporter: there will be 70 cameras capturing the sights and sounds, including more than 30 that will be mounted around the stadium for a 360 view. that is on top of a camera mounted to a plane and another on a tower at great america amusement park. this is super high tech. >> yeah, super high tech. >> reporter: sometimes you have to use a marker. there will be 16 of these pylon cameras that mark each corner of the end zone. the 13 production trucks on-site at levi stadium were brought in a month ago, while the set is still getting its finishing touches. this is where all of the hosts will be sitting on super bowl sunday and they are the ones who

>> i hope it's made me a little smarter in tv. >> this technology helps give him some information that he can analyze and make it interesting visually. >> reporter: beyond what they do on the broadcast, the commentators now also have to connect on fans with social media. >> it's overwhelming for the old-timer here. i got to be honest with you. >> reporter: all to make sure there is super coverage for the tens of millions of fans tuning into super bowl 50. the production teams actually start planning once the host city is announced. that could be years before the game is actually played. and one thing they said helped them was "thursday night football." they call that mini super bowls every week. >> jamie yuccas in san francisco, thanks a lot, jamie. the only place to see super bowl 50 is right here on cbs. kickoff is this sunday at 6:30 p.m. eastern. coming up after your local news on "cbs this morning,"

this is the "cbs morning news." (baseball on tv in background) with heart failure, danger is always on the rise. symptoms worsen because your heart isn't pumping well. (water filling room) about 50 percent of people die (dog whimpering) within 5 years of getting diagnosed. but there's something you can do. talk to your doctor about heart failure treatment options. because the more you know, the more likely you are... (dog whimpering)

at last, people had such high hopes for rand winning in that those who hoped were clearly high! but senator paul should take some comfort in living up to his father's legacy of also not being president. >> here is another look at this morning's top stories. democrats hold their fifth presidential debate tonight in new hampshire. at a town hall meeting last night, hillary clinton and bernie sanders argued over who is a true progressive. cruz said trump is losing it after trump charged cruz for fraud in iowa and called for a caucus do-over. a travel related case of a zika virus has been detected in georgia and nine cases have been detected in florida where the governor has declared a state of emergency. there is a growing concern now that zika has been transmitted through sexual contact.

the super bowl on sunday. one photographer has had a spot at every game. john blackstone spoke with him. >> reporter: at super bowl i in 1967, the very first super bowl touchdown was captured by a photographer just 15 years old. john beaver. >> i had max mcgee's first touchdown and a wide shot showing it as he stands in the background. >> reporter: the stands were not full for the first super bowl? >> no, no. >> reporter: since then, beaver has photographed every super bowl. >> here is joe namath coming off the field after super bowl iii. there is john madden getting carried off the field at super bowl xi. >> reporter: he got to the super bowl because his dad was a photographer for the green packers. that photo gave him a favorite photo. >> it's vince lombardi coming off the field after the first super bowl and my father is in the right in the background. i had two of my favorite people in the shot. >> reporter: he has owned press

>> i look for impact. i want to see the athlete's face. >> reporter: for 30 years now, he has been with "sports illustrated." >> this player is celebrating with confetti, of course, made the picture. >> reporter: his photos reveal changes in both the game and photography. >> this was our first digital cover. this is the first year we didn't use film. now it's all auto focusing equipment. that little town to be able to follow the action is gone. >> reporter: you liked it in the old days when some mud went flying? >> this is one of my favorite shots. super bowl xxii of doug williams. >> reporter: real grass. real mud. the way it used to be. >> it wasn't like it is now. >> reporter: in spite of the changes one thing at super bowl 50 will be exactly the same -- john beaver will be there with his camera. john blackstone, cbs news, san francisco. coming up after your local news on "cbs this morning," more on the mystery of the unclaimed $63 million lottery prize.

plus, we speak with sarah blakley, the founder of the empire spanx. and stephen colbert will join us in the studio. that is the "cbs morning news" for this thursday. thanks for watching.