mark strassmann is there. >> reporter: zika anxiety pushed teams of mosquito-control sprayers into florida today. florida's hot, humid client puts its 20 million residents at risk for the virus along with millions more tourists. governor rick scott. >> we're state that has mosquitoes similar to mosquitoes that could carry this, so it's better to get ahead of it. >> reporter: scott has asked the centers for disease control or c.d.c. to rush 1,000 zika testing kits here. the state will buy 4,000 more. testing would focus on pregnant women who are especially vulnerable. the virus has been linked to a birth defect called microcephaly. babies are born with abnormally small heads and brains. there is no zika vaccine and no antidote. dr. walter tabachnick, an expert on infectious diseases. >> i think we have to take this so seriously that we must do the chances of getting zika. >> reporter: floridians often live with standing water where mosquitoes breed, but residents are being urged to get rid of it, inside in flower vases and water tanks, and outdoors in empty pails, clogged gutters or wherever water pools. the c.d.c. has advised pregnant women to postpone traveling to 30 countries and territories, including mexico. >> i'm 16 weeks pregnant. >> reporter: erica benstock declared her own state of emergency. she has canceled her trip next month to cancun, where she was supposed to be matron of honor in her sister's wedding. >> now that it's in the state of florida, how far is it going to spread and what does that mean for everybody who isn't traveling? >> reporter: because you could stay home. >> and still get it. >> reporter: 80% of zika patients show no symptoms. scott, it's likely there are many more cases than the official numbers indicate. >> pelley: mark strassmann in tampa tonight. mark, thank you. spreading in these 26 countries and territories in the americas. in addition to mosquitoes, it's transmitted through sex, and we learned today blood transfusions. dr. jon lapook has been reporting all week from ground zero of the outbreak in brazil. >> reporter: here in brazil, donated blood is not yet tested for zika virus. instead donors are asked if they've recently been ill, but since 80% of people with the virus have no symptom, self-reporting misses most infections. in brazil the virus is predominantly spread through mosquitoes, but in the united states, nearly all the reported cases are imported from travelers. that's why the major blood banks say people should not donate blood if they have traveled in the last 28 days to mexico, the caribbean, south or central america. the director of transfusion medicine at u.p.m.c. >> if the deferral will take the risk, so i think by far the benefits of transfusion would outweigh the very small risks of an infected unit. >> reporter: there is a test called p.c.r. that can detect zika virus in the blood, but it's not government approved in brazil or in the united states where about 21 million units are transfused each year. >> we keep the virus here frozen. >> reporter: researchers rafael franka has been studying zika closely at this laboratory in brazil. >> we have the machines and the technology to do. this we need to make sure we have solid results. >> reporter: there's nothing really stopping you from testing every blood transfusion for the presence of zika virus? >> yeah, true. we just don't have enough time actually. >> reporter: if mosquitoes in the u.s. get infected, travel bans alone would not be an effective screening method. if that happen, testing donor zika virus would be considered. >> pelley: jon lapook in brazil for us tonight. john, thank you. now, five days before the new hampshire primary, a poll out this evening shows donald trump leading marco rubio by 11 points. that's a seven-point improvement for rubio, putting him ahead of ted cruz. trump is looking for a comeback and major garrett is there. >> reporter: donald trump is learning retail politics means more than selling hats and t-shirt. >> okay. let's go. >> donald, we love you. >> reporter: it means mingling with voters, something trump rarely did in iowa. >> got to do it. it's crunch time, right? >> reporter: crunch time is right, and trump's ad hoc ground game is hurriedly playing catch-up. trump has led every poll here since july, but today would not predict victory. >> i don't think in terms of losing. that's why i'm here right now. i think we're going to do well. >> donald trump is very rattled right now. going to win iowa, and then he didn't win. report iowa caucus winner ted cruz is trying the maximize his momentum to catch trump and beat marco rubio. support. >> reporter: marco rubio picked up rick santorum's endorsement yesterday, but this morning santorum did little to help the florida senator. >> list one accomplishment that marco rubio has achieved in four senate. passed bill. >> the bottom line is there isn't a whole lot of accomplishments, joe. i don't think it's fair question. >> reporter: rubio quickly downplayed santorum's comments. >> i wouldn't expect him to be entirely familiar with my record in my time. >> we're electing a president of the united states, in the a back bencher to the united states senate. >> reporter: jeb bush has made an issue of rubio's lack of experience all week. today the super pack supporting bush featured its first tv ad featuring george w. bush. i know his good heart and his strong backbone. >> reporter: scott, top republicans say trump can win without the months of organization and money that ted cruz, john kasich and jeb bush have devoted to new hampshire. >> pelley: major garrett in new hampshire, major, thank you. speaking of jeb bush, he finished sixth in iowa and he's at 10% in new hampshire. well, today norah o'donnell spoke to him and his mother, former first lady barbara bush. >> just a few years ago you said no more bushes in the white house. >> funny. i knew you were going to bring that up. and i said it because it is such a sacrifice for his family, but now i know he is so needed that he has to run. >> pelley: you can see more of norah's interview with jeb and barbara bush tomorrow on "cbs this morning." hillary clinton's campaign has been facing questions about her decision as secretary of state to use an unsecured computer e-mails. some of those e-mails turned out to contain top-secret information. well, today we learned that clinton is not alone, and we asked nancy cordes to look into this. >> i will be a better president. >> reporter: clinton suddenly finds herself in good company. according to an internal state department review, two of former secretary colin powell's personal e-mails also contained classified information, as did ten e-mails from the personal account of top aides to his successor, condoleezza rice. >> most of them i think are pretty benign. >> reporter: like clinton, lauren powell exclusively used a personal account as secretary of state, though he e-mailed far less often. in a statement today he said the two e-mails in question were from my executive assistant and forwarded messages sent by two of our ambassadors to state department staff members. i have reviewed the messages, he said, and i do not see what makes them classified. sided with him. press secretary brian fallon. overclassification run amok. >> reporter: the state department announced last week that 22 of clinton's e-mails which sat on her private server for years are being reclassified as top secret, one of the highest levels of classification, higher than the secret and confidential designations given to the powell and rice e-mails. more than 1,500 clinton e-mails have already been put in those categories. isn't there a big difference between an e-mail or two being classified as confidential and 22 e-mails being classified as top secret. >> these e-mails that have been judged top secret are completely wrong. we want them released. let the public see them. >> reporter: f.b.i. is still looking into clinton's use of a private server, but, scott, the clinton campaign views this as a rare positive development in a year-long controversy. >> pelley: nancy cordes with the clinton campaign. nancy, thank you. today in the water emergency in that lead levels are dropping and home filters appear to be working. but that isn't true everywhere as our adriana diaz discovered. >> we have this information sheet from e.p.a. >> reporter: e.p.a. agents have fanned out in flint, targeting homes where lead levels remain sphub -- stubbornly high. joeagnone's tap water has the city's second highest amount of lead on record. it's classified as toxic waste. >> does it look like that water is contaminated? >> that looks like regular water? >> right. only to find out you got over 5,000... >> reporter: parts per billion. >> parts per billion. this is the reason why we never really even considered our water being bad. >> reporter: old and corroded led pipes in some homes are still releasing lead into the drinking water. since january 1st, 364 homes of the more than 5,000 tested of 15 parts per billion. 48 topped 150 ppbs. overall is water safer here for flint? >> safer since last fall? >> reporter: uh-huh? >> we don't have the day to to be able to say that yet. we're hoping, but again, that's why we're here. we're collecting samples. we're trying to evaluate the health of the system. >> reporter: concern for lead levels in children's blood is still high. today state health officials released the latest data. they show 2.5% of children have elevated blood lead levels. last year at this time it was 2.1%. parents continue to bring their children in for blood testing, fearing developmental delays and behavioral issues. >> it's just a bad situation. we just worry. e.p.a. are on the ground conducting tests at homes with the highest lead levels. scott, today officials announced they want every child in flint lead by april 1st. >> pelley: adriana diaz. adriana, thanks. well, there was quite a scene on capitol hill today. martin shkreli was there, the former drug company executive who became a poster boy for price gouging. he was later arrested on unrelateed fraud charges. members wanted to ask him about drug prices. >> on the advice of counsel, i invoke my fifth amendment privilege. i invoke my fifth amendment privilege. i invoke my fifth amendment privilege against self-incrimination and respectfully decline to answer your question. >> pelley: his space spoke volumes. >> i wish you could sigh the faces of people who could not get the drugs they need, and i truly believe... are you listening? >> yes. >> thank you. i truly believe you could become a force of tremendous good. could use your help. may god bless you. >> pelley: after the hearing, shkreli invoked one more right to spree speech, tweeting, "hard to accept that these imbeciles represent the people in our government." martin shkreli was the company executive embroiled in that price gouging 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[doorbell] woman: coming! >> pelley: today several hundred people paid final respects to 13-year-old nicole lovell of blacksburg, virginia. there was hearing today for one of two virginia tech students who are charged in her stabbing, and don dahler is following the case. parents left the montgomery county courthouse after a judge denied their 19-year-old daughter's bail, and the prosecutor, mary pettitt, laid out new details of the case against her. pettitt described how keepers and fellow virginia tech student david eisenhauer carefully planned the murder of 13-year-old nicole lovell, whom he met online. police found messages from him on her phone. the prosecutor said the college students plotted her murder at fast-food restaurant. they then bought cleaning supplies at one walmart store and a shovel at another. investigators say the girl was murdered january 27th, the same day she climbed out of her bedroom window to meet eisenhauer. she was killed on a remote road north of virginia tech. the prosecutor said that after the girl was dead, the two put her body into the trunk of eisenhauer's lexus and drove to north carolina where they dumped it by the side of a road. pettitt said keepers confessed to her role in the girl's death. prosecutors did not reveal a excited to be part of something special with eisenhauer. scott, keepers' parents told the court that she has mental health issues. >> pelley: don dahler, thanks. still ahead, quarterback cam newton, the super bowl star, talks to james brown. i am her best friend. i i her ally. so i asked about adding once-daily namenda xr to her current treatment for moderate to severe alzheimer's. it works differently. when added to another alzheimer's treatment, it may improve overall function and cognition. and may slow the worsening of symptoms for a while. vo: namenda xr doesn't change how the disease progresses. it shouldn't be taken by anyone allergic to memantine, or who's had a bad reaction to namenda xr or its ingredients. before starting treatment, tell their doctor if they have, or ever had, a seizure disorder, difficulty passing urine, liver, kidney or bladder problems, and about medications they're taking. certain medications, changes in diet, or medical conditions and may increase side effects. the most common side effects are headache, diarrhea, and dizziness. all my life, she's been there for me. now i am giving back. ask their doctor about once-daily namenda xr and learn about a free trial offer at namendaxr.com. there's a more enjoyable way to get your fiber. try phillips' fiber good gummies plus energy support. it's a new fiber supplement that helps support regularity and includes b vitamins to help convert food to energy. mmmmm, these are good! nice work, phillips! the tasty side of fiber, from phillips'. it's just a cough. if you could see your cough, you'd see just how far it can spread. robitussin dm max soothes your throat and delivers fast, powerful cough relief. when i lay in my tempur-pedic contour, then i slowly feel it start to kind of wrap itself around me. with tempur-flex you've got the spring and bounce of a traditional mattress. then, it also adjusts to my body. my cloud feels so comfortable. it feels like somebody's hugging you. buy now, and save up to $300 on our most popular tempur-pedic mattress set. and sleep happy with zero percent apr for five years. how can a bed do that!? 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>> their professionalism. here i am, i'm in awe every single time i see michael jordan. really embarked upon elite status in nba history. and i'm not too proud to ask from lebron to, you know, michael jordan, to steph curry or even yourself that i need help. you know what i'm saying? i'm not perfect. anything that you can tell me, anything that anyone else can tell me that may help me in my growth, i want to hear it. >> reporter: when they signed you to that contract, they said it was because they felt you could get them to the promiseland. you're like moses now. you're at the doorstep. will you be joshua and take them question? >> i'm hoping. i'm hoping. i can't promise anything. i can tell you this: i there's going to be a person out there on super bowl sunday prepared and living the dream. >> pelley: and this weekend j.b. is in super bowl city. i wonder, cam newton gets a lot after touchdowns. what does he make of that? >> you know, scott, he's quite puzzled by the extent of the reaction to his celebrations on the field. it is atypical for a quarterback to be quite so demonstrative, but he'll be first to tell you, enthusiasm is what has gotten him to this point. as a matter of fact, my high school coach says nothing great enthusiasm. he's embracing it. they're at the doorstep of a super bowl championship. >> pelley: well, a lot of enthusiasm for the game this weekend. james brown, thank you very much. you can see j.b.'s full interview with cam newton on "60 minutes sports." that's tuesday night on showtime. well, if you were anywhere near a dance floor in the '07s and '80s you know the music of maurice white. so remember he was the founder and leader of earth, wind and fire. their mix of soul, jazz, funk and disco sold more than 90 for white's "got to get you into my life." maurice white has died of parkinson's disease. and we'll be back in a moment. this is sheldon whose long day setting up the news starts with minor arthritis pain and a choice. the #1 recommended pain reliever by orthopedic doctors. just two aleve can keep pain away all day. shoot off fireworks in iowa. house and senate leaders say.. if the bill goes to a floor vote.. it'll pass. the story... n >> pelley: today nfl commissioner roger goodell said the league will now require teams and his own office to interview women for executive positions. there are already a lot more women among the fans, including michelle miller. >> reporter: for the past ten years, megan lopresti and her friends have been meeting up every sunday for one reason. >> i like sports, but there's something about football. it keeps you on your toes. of the 43% of the nfl fan base that's woman. >> we'll start with the latest hire, kathryn smith. >> reporter: last month the buffalo bills made history in hiring first full-time female coach. >> how do you get something going offensively? >> reporter: tracy wilson is the lead sideline reporter for cbs sports. women never get a chance the play football. you just watch it from afar. >> reporter: she's loved football ever since she wore pigtails. when did women say, hey, i want in in. >> that's a good question. i think nfl has made a big push, whether it's breast cancer awareness month, what they sell in the stores of tailored jersey, the commercials you see on tv. you don't own me >> reporter: madison avenue is taking note. last year 54 million women watched the super bowl. >> finally nfl women's apparel fit for you. >> reporter: the wife of jets' owner woody johnson is a fashion women's merchandise is the fastest-growing sector with sales increasing more than 20% a year. what do women bring to the sport that men don't? >> the woman is the blew that holds the whole family together. the woman makes most of the decisions. and that includes purchasing power. >> reporter: so while the men may score the winning touchdown this super bowl sunday, women are fast becoming football's most valuable players. michelle miller, cbs news, san francisco. >> pelley: and that's the "cbs evening news" for tonight. for all of us at cbs news all around the world, good night. announcer: you're watching kcci 8 news. >> what i know about fireworks stacey: what has changed it might allow the fireworks banned to pass this time around. steve: the problems and accidents associated with this interchange. see is -- see what is being done on highway 30. stacey: developers and city leaders now want to put in its place. lawmakers are again trying to pass a law allowing fireworks in iowa. steve: the bill to do that failed last year, but supporters say the have made changes that will all but ensure. marcus mcintosh's live at the statehouse. marcus: legalizing the use of fireworks in the state of iowa has been a discussion at the statehouse for more than two years. it now has the votes to pass. the fireworks bill that passed the senate committee this week would allow the purchase of fireworks in certain months and p.m.

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