Dr. Besser, with your questions answered. Two storms hitting this weekend. The dangerous moment on the highway already. And the new headline coming out of the nfl tonight on concussions. Coming amid a controversial claim about o. J. Simpson. Good evening, we begin tonight with two major developments in the race for 2016. The two front runners on each side. Hillary clinton, and the bombshell from the Statement Department today. 22 emails from her private server have been described as top secret. Vgts. And trump, will he pay any price, or will he give up any lead . Heres tom llamas. Reeling, and donald trump trying to take him out, calling the canadianborn senator an anchor baby. Now ted cruz may not be a u. S. Citizen, right . But, hes an anchor baby. No, hes an anchor baby. Ted cruz is an anchor baby in canada. Reporter cruz refusing to return fire. Hes welcome to say whatever he likes. Reporter but trump is a hard candidate to ignore. Lets address the elephant not in the room tonight. Donald trump has chosen not to attend this evenings president ial debate. Let me say, im a maniac, and everyone on this stage is stupid, fat, and ugly. And ben, youre a terrible surgeon. Now that weve gotten the donald trump portion out of the way. Reporter but without trump on that stage, it was cruz who became the number one target. He is the king of saying, oh, youre for amnesty . Everybodys for amnesty except for ted cruz. But its a falseness. And thats an authenticity problem. The truth is, ted, throughout this campaign youve been willing to say or do anything in order to get votes. Reporter cruz at times sounding exasperated. Chris, i would note that the last four questions have been, rand, please attack ted. Jeb, please attack ted. Let me just say this. It is a debate, sir. No, no, a debate actually is a policy issue. But i will say this, gosh, if you guys ask one more mean question, i may have to leave the stage. Reporter this morning, the front page of todays des moines register, rough night for cruz. He got really pummeled last night. I dont know whats going to happen to his poll numbers, but probably theyre not going up. Look, i think last night was voters to assess the candidates. Mr. Trump chose not to attend. That was his choice. Reporter onstage, sparks also flying between jeb bush and marco rubio, both competing to be the antitrump. You used to support a path to citizenship. So did you. You changed. So did you, marco. Reporter as for trump, no regrets about skipping the debate. And theres only one thing that could make trump happier. But hell need his daughters help. In two weeks. I said, ivanka it would be so great if you had your baby in iowa. It would be so great. Id definitely win. Trump flew to New Hampshire this morning, but hell be back in iowa, right, for the caucus . Yes, and while other here, this will be his longest trip, and he still has a slight lead here. Thanks. And on the democratic side, clinton and sanders neck and neck in the polls. And this evening, Hillary Clinton dealing with a new headline from the state department. Saying nearly two dozen emails are top secret. And emails with the president being kept private. Jonathan karl in iowa, on the clinton emails. I need your help monday night. Reporter Hillary Clinton is pleading for support to fend off a surging Bernie Sanders in iowa. Bring a buddy to caucus. Reporter but as she rallies supporters here, a bombshell of bad news for clinton from washington. The state department declared top secret 22 of the emails from the private account clinton used as secretary of state. Upgraded at the request of the intelligence community. Reporter none of the emails were marked classified at the time. But today, the state Department Said they are now examining whether or not they should have been. Today, the Clinton Campaign pushed back hard, denying the emails are truly top secret, saying in a statement, this appears to be overclassification run amok. Mrs. Clinton, herself, had no comment. In fact, when we caught up with her before the email news broke, she would not even answer this. Secretary clinton, what is it going to take to win . What do you have to do between now and monday to win . Three days before the iowa caucuses, clinton volunteers signing up supporters outside this rally in des moines. So for every person coming into this rally, the campaign will have their names, phone numbers, addresses, and more importantly specifically when they are willing to volunteer. As for Bernie Sanders thank you very much. We were told there would be a few people here. Reporter hes urging volunteers to pull out the stops beg, borrow, kidnap. Do whatever you have to do. Is kidnapping illegal in iowa . A very tight race in the democratic side. Back to the clinton emails, the state Department Said it would not release 18 emails between the secretary of state and the president . Yes, they were very careful to say they were not classified, but theyre president ial records, and wont be released until years after president obama leaves office. And i want to get to cecilia vega. As clinton deals with a new headline, weve noticed a change in tone, clinton calling sanders a friend . Why a more compassionate tone . Has a slight edge here, and thats what they believe will happen on monday. But one source describing the mood with clinton as realistic. Theyre working the phones, calling people to see if they need rides to the caucus. Bill clinton will be a huge part of this weekend. And weve been talking about the ground game, thats what it will come down to. The number of people on their teams, and whether they can get the people out to vote. Cecilia vega, thank you. Well have coverage throughout the weekend on Good Morning America and world news tonight, and then on the big day right there. And we hope youll join Martha Raddatz and me in the next republican debate, one week from 6th, 8 00 p. M. Right here on abc. And breaking news on the three escaped convicts. One is under arrest, turning himself in. Meanwhile, the other arrest tonight, a Woman Working as a teacher inside the jail, who Authorities Say was in on it. Providing maps. Matt gutman, reporting in tonight. Reporter thats one of the fugitives in the distance, bac doung, whose capture was as simple as his escape was elaborate. 20 minutes earlier, he materialized outside this mechanic shop. He came in, and he wanted to turn himself in. We called the police, and thats all i know. Reporter duong faces charges including attempted murder. He allegedly stole this white van during their escape. We watched police still scouring the area for it this afternoon. Officers have been searching this entire area. Right now, theyre focusing on those containers with k9 units, but still those other two one of them, nayeri, allegedly enlisting the help of his jailhouse english teacher, who Authorities Say supplied a google earth image on paper that showed an image of the entire central jail complex. She played a significant role in the planning. Reporter 44yearold Nooshafarin Ravaghi had security clearance at the jail. And apparently a deepening relationship with nayeri, both of whom shared iranian roots. They athink theyre still somewhere here on the streets of california. Thank you. Now to the standoff in oregon. The fbi releasing video. The suv careening into the snow, the protester with his hands up, appearing to reach for a gun in four are still holed up on federal property. Overseas, word of a near miss between american and Russian Military planes. The pentagon claiming a russian plane flew within 15 feet of the american plane. Saying the russian pilot flew in an unsafe and unprofessional manner. And new word about the zika virus. 36 cases in 12 states. 4 of the cases are pregnant. And what can the mothers do now . What a top u. S. Health official is saying about the risk here at home. Dr. Richard besser at ground zero in brazil. Reporter we travel three hours north by plane. The highest concentration of zika cases in the world. We put on repellent to protect from mosquitos. Here at the medical center, theyre treating more and more patients. First, we were shocked to find babies born with micro microcephaly. It was a surprise not only for the doctors, but for the mothers. Reporter elena has difficulty hearing, but does well in vision tests. Little is known about the zika virus. Scientists trying to answer the big question here, how closely are the virus and brain damage and babies linked . To door, trying to show mosquitos. So lets get right to dr. Besser, joining us now from brazil. How long does the virus generally stay in your system . Only for one or two weeks, and the infection is mind. But theyll be monitoring baby ies to make sure theyre developing normt normally. And stocks ending with a rally, closing up near 400 points. But stocks still down for the month of january. Still much more ahead on the nfl with a big headline about concussions. And the danger on an american highway already. Well show you the pictures. Dramatic video. The takedown at a Cracker Barrel. And the surprise behind the surprise. Olympic hero Michael Phelps talking about why he swed up at a game to distract a player. Well be right back. What if one situp could prevent Heart Disease . One. Wishful thinking, right . But there is one step you can take to help prevent another serious disease. Pneumococcal pneumonia. If you are 50 or older, one dose of the prevnar 13 vaccine can help protect you from pneumococcal pneumonia, an illness that can cause coughing, chest pain, difficulty breathing, and may even put you in the hospital. Even if you have already been vaccinated with another pneumonia vaccine, prevnar 13 may help provide additional protection. Prevnar 13 is used in adults 50 and older to help prevent infections from 13 strains of the bacteria that cause pneumococcal pneumonia. You should not receive allergic reaction to the vaccine or its ingredients. If you have a weakened immune system, you may have a lower response to the vaccine. Common side effects were pain, redness or swelling at the injection site, limited arm movement, fatigue, headache, muscle or joint pain, less appetite, chills, or rash. Get this one done. Ask your doctor or pharmacist about prevnar 13 today. baseball on tv with Heart Failure, danger is always on the rise. Symptoms worsen because your water filling room about 50 percent of people die dog whimpering within 5 years of getting diagnosed. But theres something you can do. Talk to your doctor about Heart Failure treatment options. Because the more you know, the more likely you are. V dog whimpering to keep it pumping. Next tonight, the extreme weather. The separate systems were tracking. One would affect the iowa caucuses, and one already with a monster sink hole. Heres rob marciano. Reporter this roadway peeling apart. There it goes reporter watch again. Whoa reporter from another angle, blacktop falling away. An monster sinkhole growing the entire road is gone. Reporter now, more than 50 feet wide and growing. El ninofueled storms are to blame. Officials say all the water overwhelmed the storm drain under the road. That stretch of 101 now likely closed until spring. And high snow levels, sinking and lowering. So cal gets it sunday morning, but i think theyll see debris flows from this. A big storm for the midwest on tuesday. I think iowa doesnt get the snow until after the caucuses on monday. Monday night. Rob, thank you. And when we come back, news concussions this season. And another theory about o. J. Simpson. And Michael Phelps talking about this appearance at a basketball game, that did the trick. Escription xifaxan. Xifaxan is a new ibsd treatment that helps relieve your diarrhea and abdominal pain symptoms. And xifaxan works differently. Its a prescription antibiotic that acts mainly in the digestive tract. Do not use xifaxan if you have a history of sensitivity to rifaximin, rifamycin antibiotic agents, or any components of xifaxan. Tell your doctor right away if your diarrhea worsens while taking xifaxan, as this may be a sign of a serious or even fatal condition. Tell your doctor if you have Liver Disease or are taking other medications, because these may increase the amount of xifaxan in your body. 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Is suffering from the disease known as cte, hits to the head and brain during his football career. Explosive impulsive behavior and impaired judgment. Its drawing a strong reaction and arizona states secret weapon, Michael Phelps, popping out from behind the socalled curtain of distraction at the and his gold medals. Hoping to distract the player on the opposing team attempting a free throw. It worked, missing both of them. Arizona state won. The curtain of distraction, a long running asu tradition. University when he retires after the olympics in rio. And that just may help him get the job. When we come back, what happened ten years ago today us. Tonight, we celebrate a triumph. Digital notebook that instantly gives you an equity summary score that consolidates the stock ratings of top analysts into a single score. And 7. 95 online u. S. 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His children and the long wait. Its so great to be home. Belt buckle. Belt buckle. Belt buckle. You taught me. Ten years later, bob is as hungry as ever. Reporting from all over the world. Tonight, marking whats called his tenth alive day. The bob woodruff foundation, helping so many of the wounded. Sergeant michael boothby, wounded by an ied outside baghdad in 2006. Bob has been there. His rehab. And tonight, michael, with a message to us. The biggest thing since my alive day is just seeing my kids and being there for my kids. Its just such a blessing for me. Theres Staff Sergeant mike kacer, too, his arm lost in afghanistan, helped by bob. The first thought i had was, will i ever be normal again . Now, training for the paralympics. Hoping to become a fulltime phys ed teacher this fall. And althea raiford, back on the family farm. Surviving the struggle that came after serving. She, too, helped by bob. Happy alive day. Tonight, bob and his wife lee leading the charge. And lee writing to her husband, this photograph of your boots is my gift to you today. It reminds me that a decade later, like so many military families in this country, we are all still standing. We have survived, and then some. Bob, doug, lee, and all of the wounded theyve helped, we celebrate them all. Im david muir