nt. you'll never know unless you go. i did it. you can too. ♪ new concerns over u.s. border security in the wake of that attack in ottawa this week and joining me now bob baer cnn national security analyst and former cia operative. bob, we know there are more than 18,000 border patrol agents on the border with mexico but just over 2,000 on the significantly larger border with canada. what's your opinion? is the u.s. focusing on the wrong border? >> well, i think really both borders are a problem. there are a lot of smuggling, of course, going back and forth. a lot of drugs going back and forth. there are connections in the middle east you can make. arrangements to get somebody to take you across the border, both canada and the united states.

nonetheless, nothing has come from either border so far in the last decade. so, it's really very much an aspirational thing at this point but i think we should worry about those borders and we should worry about who's coming into canada and who's coming into mexico. we need to share databases with those countries and to do traces on them, frankly. >> why isn't that happening already? >> you know, the databases aren't unitized. the mexicans and the canadians are reluctant to give the fbi access to them at this point which i think is unfortunate. in the same way with reservations. we can track anybody coming to this country on the two reservation systems but the same doesn't go for mexico and canada. and unless you get a heads-up on these people traveling, you really can't do a full investigation on them. >> we learned earlier this week that u.s. military folks that are in canada will not be wearing their uniforms anymore. just out of safety concerns

after these two attacks in one week against soldiers. isn't this giving the bad guys what they want? >> well, it's a precaution and they have to take it. because isis can't hit americans anymore in their area in the so-called caliphate so they're going to move abroad. and i do think, and there's no firm evidence on, they're going to come after american targets wherever they can get to them and the closer they are to the united states itself, the more fear it's going to cause and concern and in as much as you can make predictions on this i think it's where it's going. >> better safe than sorry as you just said. thank you so much for being here and we appreciate you sticking with us over a couple of hours. >> thank you. it's one of the biggest academic scandals to hit college sports in a decade. a cheating scheme at the university of north carolina. now one of the coaches is speaking out. we'll hear from him next.

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see car insurance in a whole new light. liberty mutual insurance. okay. imagine being able to head off to college. you enroll in certain classes that you never even attend and still get good grades? well, that's exactly what investigators claim student athletes did at the university of north carolina for 18 years. we're going to discuss this really stunning revelation that was revealed during the course of a long investigation. why does this even happen to begin with? >> yeah, so what they found was that this all started with one professor's assistant who was sympathetic basically who students who weren't the best and the brightest. that's a quote from her. she was also a huge fan of unc basketball. she would sometimes miss work if they lost. and the athletic advisers and

academics -- yeah, academic advisers in athletics began to take advantage of this pushing athletes into these classes when they were on the brink of eligibility so even if they couldn't compete in the classroom they could still compete on the field. >> i can't imagine what would necessitate that. i was a student athlete in college. i know what kind of resources student athletes are given, tutors, computer labs, to be able to succeed academically. what are coaches saying about this? >> it's interesting. so everyone is asking do the coaches know if the advisers knew, do the coaches know, some of them did. what the report found was that former head football coach john bunsing he admitted he knew about it. his successor butch davis admitted some knowledge of the paper classes. he was fired in 2011 after this was all revealed. i wanted to know, dean smith, he is a legendary basketball coach in that state. he was at unc for 36 years. he's an icon. anyone who follows college

basketball knows of dean smith. the report found no findings on him and his staff so no evidence that he knew about this. he retired in 1997. these classes started in 1993 which coincidencely is also a year they had a basketball championship. but the current head basketball coach roy williams he is adamant that he knew nothing about this. and he actually just spoke about this just reacted to this report and i want you to hear what he had to say. >> i didn't like the fact that we had so many guys in the same major. i didn't think it was -- made sense. people have different things that they like. we'd go in had home at that time even more strong and say what would you like to major in and we allowed kids to choose any major. after our second year, i think the rest of that time kids that we recruited had one guy majored in african-american studies because i didn't like the clustering. and, yes, they made very good

grades. but i want our guys to be able to choose what they wanted to choose. things that have happened for a long time it's very disappointing. we're all really extremely sad about it. i'll always be sad about the image that we have right now around the country. we've had one of the greatest images we can possibly have, and we're going to work as hard as we can possibly work to have that image be back to where it was. there's not been a day in my life that i haven't tried to do the right thing academically and get my kids to be concerned about the academic side. >> all this being said, 18 years this was going on, what are the repercussions? >> so, the ncaa is taking another look. they previously said it was an athletic scandal. but now they are coming back with a full copy of this report, 131 pages and almost 900 pages of supplement documents, e-mails, they could easily come back and say some of the wins were not legitimate. i think at least two men's basketball championships are definitely in jeopardy in 2005

and 2009. that was the height of the scandal when most of the students enrolled in these classes were taking them. >> crazy. thanks. >> of course. in new york, health officials are now putting a time line together that traces and retraces the footsteps of ebola patient craig spencer. we'll show you how they are putting this timeline together next. come on! let's hide in the attic. no. in the basement. why can't we just get in the running car?

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we are trying to figure out where he's been and who he might have exposed. here's cnn's jason carroll. >> reporter: the apartment is sealed off limits to all except health department officials who sent in experts to decontaminate his unit and its content. all this as so-called medical detectives piece together spencer's whereabouts prior to being diagnosed with ebola. >> we've been tracking down and seeking to account for every minute since 7:00 a.m. on october 21st. >> reporter: spencer returned to the united states on october 17th after treating ebola patients in guinea. feeling fine. he was checking his temperature twice a day. on tuesday october 21st, 7:00 a.m., again, no fever. but spencer tells investigators that morning he was feeling fatigue and exhaustion. still around 3:00 p.m. tuesday spencer stopped here in the greenwich village at the meatball shop. it's a popular chain here in new

york city. as of thursday afternoon the meatball shop was closed but there's a sign on the front door that says by tonight they will be back open. 4:30 p.m. tuesday he heads to the high line a popular elevated walkway on manhattan's west side. he stops here at the blue bottle coffee stand. >> the health department came here this morning just to make sure that we were feeling safe. i don't think anyone is feeling unhealthy. everybody's healthy and happy. >> reporter: 5:30 p.m., spedgeer takes of the one train back to the 145th street station near his home. wednesday october 22nd, still no fever. 1:00 that afternoon he goes for a three-mile run along riverside drive and west side highway. 5:30 early wednesday evening he opens on the subway destination williamsburg, brooklyn. spencer took the a-train and then the l-train to williamsburg.

medical detectives know that and they also know at that point he was feeling fatigued but he was not running a high temperature. the a-train like most trains in new york city can get pretty crowded but health officials say when spencer took the train he was not exhibiting any symptoms and, therefore, they say he was not contagious. two of spencer's friends joined him for the subway ride to the gutter bowling alley in williamsburg, the gutter now temporarily closed for cleaning. >> i definitely would not voluntarily go there right now. >> reporter: wednesday 8:30 p.m. health officials say spencer left the bowling alley and took the taxi service uber 10:15 a.m. thursday, spencer first reports a fever of 100.3 to doctors without borders and the city health department was notified. he's immediately transferred to bellevue operate and isolated. city officials confident spencer was not widely contagious. >> casual contact cannot lead to acquiring this disease.

the only threat is if one has come in contact directly with the bodily fluids of someone who has this disease. >> reporter: jason carroll, cnn, new york. >> our thanks to jason. just a quick update to jason's story there. after a thorough cleaning the gutter alley in brook hin has indeed reopened. and joining me now is cnn medical analyst is dr. van zan tolikin, a lot of people are concerned because new york is such a big, busy city. we mentioned in that report that he was feeling fatigue prior to feeling -- or reporting that fever. so, if he's feeling fatigue, does that make him potentially infect, and contagious? >> what we know is the virus will have been slowly replicating in his bloodstream and in his body through the whole period since he acquired it and developed a fever and that means that potentially his bodily fluids would have virus which could be contagious but i think it's really important to

say that the viral levels are so low that i think the chance of him infecting anyone are as close to zero as you can reasonably say. i would say there's about as much chance of catching ebola on him on the subway as there was from catching hiv from someone who was hiv positive. i think it is incredibly unlikely. the contact tracing is partly to make sure there was no big instant, he didn't cut himself open or get drunk and vomit and as far as we can tell nothing like that has happened. i think no one in new york city other than his very close contacts and particularly his fiance are likely to have been exposed and even them are fairly safe. >> none of them are showing no symptoms. >> other people on airplanes and in the early stages didn't infect anyone. >> doctor, say with me. we'll talk to you on the other side of this break. new york and new jersey imposing new mandatory quarantines for anyone traveling from a country in west africa, been treating patients with ebola.

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they're risking their lives, sacrificing their livelihoods. doctors who are traveling to west africa to provide much-needed help there in the ebola hot zones. our cnn's nick valencia spoke to one man who we'll talk to just on the other side of this story who has been preparing to go to liberia. he leaves in just ten days. but, first, meet about how he's training to go there and we'll talk to him about the mandatory quarantine posed in new york and new jersey and see if it changes anything in his plans. >> reporter: in an abandoned building in alabama, health care workers are getting a crash course on treating ebola

patients in the hot zone. >> hold them forward and away from you. >> reporter: this group of american doctors and nurses will soon head to the three countries in west africa affected by the ebola outbreak. this doctor will go to liberia and he says the training he gets today will mean the difference between life and death. saw you struggle as you -- >> it's not easy. it's not easy. that was a large size and i'm not a large guy, but still, i could not get the coveralls over my shoulders without really touching the outside which is the contaminated side. i was supposed to only touch the inside which is the clean side and just couldn't do it. so that's -- i'm going to practice again and again. >> reporter: the training is modeled after procedures used by doctors without borders. three days of intense practice in dealing with drawing blood. cleaning vomit. and even patient burial. a lot of it is trying to limit the inevitable human error said the cdc trainer. >> the first thing you want to do is get rid of all that bulky gear. but you have to have the muscle

memory of having done it before, of knowing that you can do it safely, and knowing that it has to take a little longer than you'd like it to and you have someone there guiding you through it. so that you stay calm and you just get it all off and then you walk out knowing that you're safe. >> reporter: she thinks a lot about safety with a wife and 2-year-old child back home in northern california he said he's anxious about his impending trip, but for him his concern is outweighed by compassion. >> whoever tells you that they're not anxious by going to liberia and working in an ebola unit i think is delusional. i'm very nervous. >> reporter: then why do it? >> like i said, it goes back to this idea of, you know, solidarity and equity. it's kind of like if you're a firefighter and you signed up to fight fires, and there's a fire, well, you should go fight that fire. >> reporter: nick valencia, cnn, aniston, alabama.

>> what a guy. let's talk more about this and the news that more stringent airport procedures will begin in new york and new jersey. i'm joined by assistant professor at uc san francisco dr. le in los angeles, the doctor you saw there in nick valencia's story. also here with me in new york is cnn medical analyst dr. alexander van tulleken. i want to start with you, dr. le, the mandatory quarantines that go into effect for those returning to new jersey and new york, what do you make of that? >> well, ana, you know, we as health care professionals and scientists we know the science behind it. and as the other doctor mentioned, the risk to the general public is very small. however, we are also not governors and mayors of large populations. so, their considerations are much broader than ours. and so with the input of the cdc

and other health professionals, if their decision that for the best of california -- of new york and new york city is to impose that quarantine on returning health care workers, then i have no opposition to it. however, i do want to say that, like you mentioned, people are giving up their livelihoods to go and volunteer to serve on the front lines. when they come back and are quarantined for those 21 days, i urge the hospitals and their employers to do as much as they can to support them so that they don't lose health benefits or salary because they went out and did that volunteer work. >> that is such a great point, and we really do salute your bravery and dedication to helping the people in west africa. we know you leave in just ten days from now and you telling us you are still planning to go despite these new mandatory quarantines is really a valiant thing i think.

dr. van tulleken i want to ask you in terms of people you are talking to in this medical industry, will this keep doctors from traveling to west africa? i know that's one the criticisms of these quarantines. >> i think this are two issues. firstly it is a disincentive to go. i really do think that people doing the kind of work that dr. le are doing are absolute heroes because they are making us safer. it's not that they are just doing good work and responding to a humanitarian crisis the only way we get less in new york is by having less in west africa. it's not been thought through carefully. we don't know how they are going to be supported and this encourages people not to tell the truth. in the end and we've heard the governor say voluntary quarantine is not going to be enough. there's not a man with a gun keeping people inside. we don't have the facilities to house people in the kind of comfort they deserve, the screening at the airport, and not all of them will be doctors

without borders or other organizations and there's a real concern that people won't be telling the truth when they get back and in the end the imposition will be expensive and i would say completely pointless. >> it should be worth mentioning that that doctor, dr. craig spedgeer, who is now battling ebola in new york city, he was with doctors without borders an organization that has an extreme amount of experience in how to handle this whole situation with ebola there in west africa and doing things to the "t" as we've heard our dr. sanjay gupta talk about. what do you make of the fact that this doctor spencer seems to be, being called both a hero and a villain to some degree because he came down with ebola and he had been out in the general population prior to getting a fever? >> well, i don't know personally dr. spencer, but i do know that he was following the protocols

of doctors without borders. and i have personal experience working with many physicians in that organization. i spent two months working in the cholera epidemic addressing that crisis in haiti in 2010, and i can assure you that doctors without borders as an organization is highly professional and highly committed to this work. and they are absolutely the best out there. >> dr. le, are you scared at all to go over there? >> well, i just left a 2 1/2-year-old and an anxious wife to come and talk to you. so, you know, it's -- it's absolutely false if i say that i'm not anxious. but just like i mentioned in that other story with nick valencia, a firefighter would be anxious to go in a raging fire that's not contained but, you

know, he or she has had years of experience and training to protect him or herself and that's how i feel. i've had many years of training. i've been in the field. i've had the cdc training. and i think i will go in with eyes wide open. it doesn't mean that i'll have no risk, but i've done everything i can to minimize that risk. >> well, we certainly wish you the best of luck and we hope that all goes well for you. thank you for the work you're doing. >> thank you, ana. >> thank you both for joining me as well, dr. van tulleken. top of the hour, you are in the cnn noirm, i'm ana cabrera, thanks for being here. we begin with the fight against ebola in america and the decision by the governors of new york and new jersey to quarantine health care workers flying into jfk and newark from ebola-affected