money it can get ten ads. >> that really big number needs to be qualified a little bit. so far we really haven't -- that poll not that bush was supposed to make a huge play in iowa. he is just barely squeaking by. >> we will see if he can get momentum here. >> hallie jackson, thank you for joining us. we will be back monday. happy thanksgiving to all of you. craig melvin picks up our coverage now. right now terror and travel. nearly 50 million americans in the air, on the roads and on the rails as the thanksgiving holiday rush is in full swing. president obama offering reassuring words to those worried about their safety. >> right now we know of no specific and credible intelligence indicating a plot on the homeland. >> meanwhile a live look there

downtown chicago. folks gathering in the streets for a second night as the protests continue after the release of a video showing a police officer killing a teenage suspect. and new information on the death of frank gif rd. what he was suffering with at the time of his death that adds him to a tragic list of other former gridiron greats. good thanksgiving eve to you. trains, planes and automobiles, it is the busiest travel day of the year. a live look at denver international airport. you can see folks milling about there. traffic moving fairly smoothly across the golden gate bridge in san francisco now. 50 million americans or so headed home for the holidays and we have you covered on this wednesday evening. we start with nbc's jacob

rascone. >> we are in a bit of a lull. it has been packed most of the day. more than 2 million travelers expected to pass through lax in los angeles throughout the thanksgiving holiday. that is a record here and makes it the busiest airport in the nation for this holiday. and airport officials are telling people to come two to three hours earlier depending on where they are going because of increased security. we see a lot more officers in automobiles and walking around with automatic weapons. they come back and forth and even here by the live shot. we know lax has been a target in the past. you had a lone gunman come in terminal three in 2013 and open fire. as the president says there is nothing credible and when you talk to passengers, when you talk to travelers here they are

mostly worried about getting to their flight on time. we seem to have dodged a bullet. we were expecting a winter storm to disrupt some travel. while the winter storm did hit so far around the country we have had about two dozen cancellations and about 900 delays but those numbers are very small on a national scale. and here at lax there have hardly been delays at all. >> thank you. from the air to the roads let's turn to sarah dallof at a gas station in atlanta. how is it looking there so far? >> reporter: it is looking good. 50 million people are expected to travel this holiday and 89% of them are going to be driving. there is some good news. the gas prices are at their lowest point since 2008. right now the national average is about $2.15. here in atlanta we are seeing it lower. here it dropped to $1.99 a

gallon this morning. for drivers that is getting the holiday off on the right foot. >> this is amazing. $1.99 is absolutely amazing. we feel fortunate since we are not traveling in the air it is a little more cost effective to travel by the road. >> reporter: a lot of those drivers are hitting the road today and tonight making today one of the worst driving days for travel this holiday. that's according to the travel and navigation app was. they say the best day for driving travel will be tomorrow with traffic peaking between 1:00 and 4:00 as people hurry to make it to the thanksgiving table in time. that is only half the battle. you have to come back. saturday is expected to be the smoothest day for that. sunday expected to be the roughest especially during hours of 1:00 and 6:00.

>> for those who are driving a long distance maybe need a hotel or rental car, what are those costing this year? >> reporter: the news is not so good when it comes to those two. those prices have increased moderately. hopefully the lower gas prices will help balance out the slightly higher hotel and car rental costs when people head out. >> sarah dallof for us there in atlanta, georgia. thanks. as millions join family for the holiday terrorism fears are rising in american cities. a new washington post abc news poll finds 81% of americans think a large scale terror attack here in this country is likely in the near future. today president obama reassured the american public insisting the united states is doing everything it can to keep the homeland safe. >> i want the american people to know entering the holidays that the combined resources of our military, our intelligence and our homeland security agencies are on the case.

they're vigilant, relentless and effective. and while the threat of terrorism is a troubling reality of our age we are both equipped to prevent attacks and we are resilient in the face of those who will try to do us harm. >> let's bring in terror analyst with flash point global partners. good to see you both. thanks for being with me. president obama saying no specific or credible threats of an attack but the bombing of a russian jet, attacks in paris, have put a lot of folks in this country on edge. are you among the 81%? do you believe a large scale terror attack in this country is imminent? >> is it completely outside the realm of possibility? no. do i think like paris here? also no. we have seen isis evolve and sophisticated attack like paris was not in the realm of

capability. i don't this can we are seeing something like that here at least not in the near future. the group is capitalizing on what they saw as a success in paris. i think we are hearing a lot of noise at this point. >> jim, lots of airports in this country under additional security, extra screening for bags and passengers. we just heard from our reporter in california telling folks to get there two hours early as a result. how effective would all of this screening be? how effective is all of this screening in terms of stopping a would-be attack? >> it is important to know there can never be 100% absolutely secure safety net. over the course of the next 24 hours and through the weekend we will see more bomb sniffing dogs and extra scrutiny for i.d. checks and people have to take off shoes even if you are tsa prechecked and maybe endure an extra pat down.

the goal is to have strong force to make sure anyone who would try to do something thinks twice about it and understands we have the posture designed to prevent something. i will say something else. throughout my time as a terrorism analyst for the department of defense we assess that terrorist groups value more the successful execution of an attack rather than sticking to a p predetermined date like a holiday or anniversary. just because it is thanksgiving and the world has been on edge over the course of the last several weeks it is consistently the analysis of the intelligence community that this is based on a group coming together that can conduct an attack at a time not necessarily one that is predetermined or targeted at a holiday. >> in other words, the fact that so often we spend a great deal of time talking about holidays in july 4th and new year's eve. would-be terrorists could care less. >> they want to conduct someening successful and don't

have a specific timeline. they want to make sure the operational security, that they have acquired the weapons and mechanisms, their team is secure and then they will move to conduct an attack when all of that is ready as opposed to trying to do something say, on thanksgiving or the 4th of july when those pieces aren't 100% in place. >> so much talk has been given about soft targets in this country and the next attack being on a soft target. how safe, how secure are the soft targets specifically in this country? >> we know they are most vulnerable. al qaeda tries to differentiate itself from isis and try to say we will only attack military and government targets whereas isis doesn't stick to that. that is because soft targets are most vulnerable. >> for the purpose of this conversation when we say soft targets we are talking about shopping malls, movie theaters, parades and concerts and things of that nature.

the state department issued this morning on monday they read in part there is a continuing threat from unaffiliated persons planning attacks inspired by major terrorist organizations but conducted on an individual basis. jim, how do federal agencies, how do police departments specifically ramp up during the holidays? >> well, first of all, the first point is i'm happy that you highlighted that individual f phrase. saying we don't have any specific credible intelligence to indicate something is imminent. you heard the president reiterate this. the concern is that someone who has been inspired by recent events could take matters into their own hands and try to do something. so as we have been duiscussing you will see increased public facing posture so that would-be

individual actors think twice before doing something. and that is really the administration's concern from this point and that's a clear indication that they don't have information indicating a credible imminent near term threat. >> it would seem to me that it would be more difficult to stop someone who decides that he is going to or that she is going to strap a suicide vest on and walk into a crowded gathering and blow himself or herself up. it would seem that would be far more difficult to stop than a coordinated attempt, a sleeper cell in this country, no? >> absolutely. that's why you have seen the evolution of terrorist tactics towards this low level threat. basically what groups like isis have realized is no longer do you need to coordinate 19 hijackers who need to travel to hijack planes.

now what you aq2 irand the same kind of fear throughout a population is basically a few weapons and a few home made bombs. you are absolutely correct in saying that it is easier. we have to accept that as a population because we have decided that we are not going to live in a police state and have accepted there will be a certain amount of risk because we don't want constant law enforcement checks and security checks in every aspect of our lives. >> folks who are traveling this weekend, what should they be aware of? >> definitely go by the see something say something. we know the government came up with an ad. that is really important to be vigilant and aware. don't be afraid. that is what these guys want and it is unnecessary. >> happy thanksgiving to you both. thanks for your time. >> happy thanksgiving to you. we are keeping our eye on the streets of chicago. another night of protests on the way there right after the release of the video tape showing deadly police shooting.

my friend and colleague chris hayes will in join me. this as more arrests are made in the shooting of a group who was protesting that death. we go to minneapolis. and the family of frank gifford issuing a statement saying the football great was suffering from a brain condition at the time of his death that has led other former players to kill themselves. more on that revelation, later. ) hey man! hey peter. (unenthusiastic) oh... ha ha ha! joanne? is that you? it's me... you don't look a day over 70. am i right? jingle jingle. if you're peter pan, you stay young forever. it's what you do. if you want to save fifteen percent or more on car insurance, you switch to geico. ♪ you make me feel so young... it's what you do. ♪ you make me feel ♪ so spring has sprung. advil pain relievers are used by more households

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one day ahead of the busiest travel day of the year people are on edge because of international attacks. will increased terror threats change your thanksgiving. you can go to pulse.msnbc.com to weigh in. we will share your results later in the show. r customers are on hold, let's up their satisfaction with some new hold music.

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now to a city on edge chicago where we are seeing live pictures of more protests after the graphic video showing the teenager shot 16 times by a police officer. the video released about this time yesterday. the video shows 17-year-old laquan mcdonald walking in the middle of the street with a knife in his nds ha. mcdonald spins, falls to the ground. a total of 16 rounds. autopsy results show there were drugs in mcdonald's system.

jason vandyke charged with first degree murder. his attorney says the shooting was justified and the video itself does not tell the full story. >> certainly my client did not go out that night with the intention to kill laquan mcdonald. he was brought into the situation by the actions of laquan mcdonald and he reacted. i know that the movements from the angle of the tape was not what my client saw because my client was in a different -- he had a different view of the incident as opposed to what the video shows. that is significant. >> hundreds took to the streets after the dash cam video was released. officials say the demonstrations were largely peaceful. five people were arrested. i want to bring in chris hayes. he has been following this case very closely, following it long before a lot of folks started paying attention to it. for folks who had been watching

it, why is there no audio on the tape? >> they say that it fed in through the dash cam without audio. i think different video systems have different audio abilities. this dash cam footage they say this is what they have. >> i understand you say you spent time talking to the attorney for the officer. >> i talked to him. i basically tried to ask him how his client felt about the fact that this young man had lost his life. he said i represent a lot of police shootings. people always work through some level of grief but he said laquan mcdonald's actions were what precipitated the ultimate events that led to his loss of life. i asked does that mean you are blaming him for his death? he said that is a harsh way to

say it. he reacted the way he reacted and we think we have a case defending that. >> how do they explain the fact that his client nor officers after the 16 shots were fired there walked over to render any sort of aid. >> there is no explanation. one thing people need to recognize is there were witnesses that night. there were police. we see from the video there are several other police presence. there are also passers by, folks in cars. you see in the frame there is a car. the two people broke this case open. they interviewed folks. witnesses on the scene, one of them told them she was yelling at the cops stop shooting. there is more than the case that the video doesn't tell the whole story. there will be more story because there were people who saw this go down. >> it is also my understanding

that this is an officer that had a number of other complaints. >> there is a little discrepancy between 17 or 20 complaints most serious of which was 2007 complaint that he so forcefully handcuffed a man that he injured a man's shoulders and put him out of work. that is relatively rare in these cases. his lawyer will point out that there was no displanary findings. even though there were 17 to 20 complaints the independent -- which to some people is an indictment of that disciplinary body. >> i spent some time in chicago this weekend. i was working on a story with spike lee on his new movie coming out. he brought up laquan mcdonald and we talked about the fact that the video was that point coming out. his point was this isn't just

about laquan mcdonald. what a lot of folks understand is that this is emblematic of a much larger problem in the windy city. >> let's be clear about the events. when laquan mcdonald was shot reporters showed up and the one person talking to them was the spokesperson for the union who told them he lunged. he broke officers window and said it is a clear cut case of self defense. that is how the story cause reported and went nowhere after that until a whistle blower went and said i hear about this video and i am concerned this is not being investigated and that led them to foil the autopsy report which showed he had been shot 16 times in direct contradiction to the story published and printed after his death. >> the protesters who were out last night and another night, tonight and we hear there is going to be a massive protest

friday at 11:00, what are they demanding? >> there have been a lot of demands. there are huge demands on the funding front in chicago. there are a lot of groups in chicago that say we want the police officers' budget cut and we want funding for essentially youth programs for black youth in chicago on the south and west side particularly. there are calls for a more robust independent accountability board. the board which is the one that reviews the shootings has been plagued by charges of bias by people who used to work it. a whistle blower who was a former cop who came forward to say he was pressured to downgrade his findings when he found fault. there is a lot of calls to replace it with someening people feel bring more accountability.

>> and people are very angry. >> said yesterday he hadn't seen the video. >> the city's position on this they are saying the standard procedure is we turn this over to ipra and we after that point have nothing to do with it. i should note it was the chicago city corporation council that was arguing in court not to release the video. it wasn't entirely out of their control. >> we have this conversation the live look there in downtown chicago at the folks who have gathered there for a second night on the streets. we should note here that last night largely peaceful. just five arrests. >> i want to be -- i spent years reporting and living in chicago. i know a lot of the folks in chicago. chicago is a place with robust tradition of organizers and activists and people have been organizing around the chicago police department for a long time. people have known about the video for a long time. before the video came out the

city of chicago long ago voted, the city council and mayor approved a settlement with the family based on evidence introduced before the full city council that the shooting recorded on the video was so bad that it was inevitable they would lose a lawsuit. so the facts of this case and what is on the video have been known for some time in the city even if the actual viewing of the video didn't happen until yesterday. >> following the case very closely as are lots of people. we are going to continue to follow this story here over the next few hours. chris hayes will have that interview tonight with the attorney, officer vandyke's attorney. sits down with germany's leader angela merkel as he tries to galvanize support. we have more on the new revelation about the condition

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france's push to form a coalition to fight isis continued today. hollande urged merkel to engage further in the fight against isis. the meeting comes one day after president obama's meeting when both men vowed to stand in so d solidari solidarity. tomorrow moscow hollande will be meeting with vladimir putin to encourage him to join the coalition. what came from the hollande merkel meeting? >> reporter: today french president francois hollande said

he would like germany to do more in the fight against isis. german chancellor angela merkel did not give details about plans for more involvement in syria. today germany did announce it was sending several hundred troops to mali to fight militants there. mali the site of a terrorist attack a fooadays afew days ago they held a moment of silence and laid flowers here at the memorial. tomorrow president hollande heads to moscow to meet with russian president vladimir putin and today said that it is very important that world powers coordinate our efforts to fight isis. to say it has not happened so far would be an under statement. also complicating matters is the shooting down of a russian plane

by turkey. today hollande said the world powers must do everything they can to de-escalate that situation. >> thank you. more protests, more arrests in minneapolis after a group of white suspects allegedly opened fire on people protesting a deadly police shooting there. the latest on that case coming up. we will continue to keep an eye on what is happening in chicago. a live look there as the sun is setting. you see folks gathered at an intersection there. we will go back live. ♪ (vo) some call it giving back. we call it share the love.

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monday as investigators continue to gather evidence. you can see they are all under the age of 30. police had a fifth person in custody. they released that person. now they say they are working with the fbi on that case. all five who are shot are expected to be okay. this group of protesters has been camped outside a local precinct for about a week now and they are demanding among other things a transparent investigation into the death of 24-year-old jamar clark. he was laid to rest yesterday. investigators say clark was not armed when he was shot and killed by a police officer. police say he interfered with paramedics. police say clark fought them when they arrived which led to the gun fire. there is video of the incident but that video has not been released. in the wake of monday's shooting protesters say they are more dedicate today the case.

they led a march through minneapolis tuesday. >> reporter: at the request of jamar clark's family today was a day of mourning, not a day of protest here in minneapolis. black lives matter didn't schedule demonstrations or marches today. on the way from the church when the funeral was held today on the way to the cemetery in north minneapolis the funeral procession did stop by. it was at the same encampment monday night that five protesters were shot. now, the injuries were all considered nonlife threatening. some of the wounded were able to attend the funeral here today. federal investigators are watching that investigation to see if any federal hate crime charges may be involved. craig, back to you. >> thank you. i want to bring in fellow.

former new york police officer and director of the black law enforcement alliance joins me, as well. let me start with you. what stands out to you about the protester shooting investigation? >> it's an act of domestic terrorism. it's not just about trying to injure protesters but trying to scare and put fear into the range and the community of protesters who are calling for justice in the case of jamar clark. that is what stands out to me is thinking about this as a case of domestic terrorism. the fbi is going to investigate this as a hate crime. >> what do we know about this lawyer's justice department they left for minnesota this weekend. can you help viewers understand what the role is going to be in this investigation? >> in large part the initial

role will be to examine that which has been done locally. they will be gathering as much information, much of the reports, perhaps overseeing or assisting in the interviewing of witnesses doing background information, whatever resources they can lend to the efforts to draw the investigation to a conclusion. so it is really a support role but a tremendously useful support role because it provides resources, as well. >> what do we know about threats that were made against the protesters before the shooting? >> there have been so many threats made especially over social media against black lives matter movement across the nation. it becomes especially challenging when you have a situation where there is so much activity and so much energy and passion and so much attention across the nation by the black lives matter movement it's hard to isolate and to really give a

threat assessment level on each and every threat. there are significant risks to those individuals who engage in this protest. >> really get involved in who covers what and getting the kind of coverage it should. this is a story that has gone dramatically under reported. what in your opinion why is that? why has this not gotten the ink or air time? >> until we saw what happened earlier in the week in terms of the shooting of the five protesters, it wasn't sexy enough. if it bleeds it leads, it was -- i think many media outlets dismiss it as angry protesters protesting a case where we don't

know the facts. earlier this week, the chicago case in terms of the video released. and then that story was also under reported. nobody reported that story when the city council approved $5 million to the family. now the video comes out and it is a story. >> are we going to see that video in minneapolis at some point? >> well, if things go according to the typical plan of law enforcement and local agencies it will take forever just to get a video released that should be within the public domain because they use the excuse of this is an ongoing investigation. we don't want to jeopardize the integrity of the investigation or don't want to unduly influence. large part it is part of this scheme and plan that law enforcement that the criminal justice community has developed in order to drag these things out as long and as far as

possible in hopes that some of the passion, the energy will diminish in some way. that is why it is so important that people who are opposed really vigorously assume their positions and stay vigilant in regards to these issues. >> with regards to this video and the chicago video, as well, there is the conversation after the video. there is this clamor to get police officers to wear body cameras. most officers now have dash c cams. there is discussion over who has the right to see the videos and who has access to see the videos that are recorded. >> and i think most of us would agree that the police are a public function. they are a function of the state, of the government. so everything they do from the reports that they write to the videos on their dashboards or

bodies should be accessible to the public. that's the only way to hold them accountable because we know what happens when we don't have access, when you have to sue to get access to the video to release the facts. so the public should always have access and it was that lawsuit from journalists suing through a request that brought it to life. otherwise we would have never known what went down in chicago. the public should have access. they should release the video so we know the facts of the case. >> before i let you guys get out of here you were there with a familiar background. what takes you to columbia, south carolina? >> i try to spend as much time as possible down there and just so you know everywhere i go on these feeds asks about craig melvin. i'm sure they are happy to see you. >> i have a lot of cousins.

>> i met them. >> happy thanksgiving. always good to see you. president obama fulfilling one of his annual duties as leader of the free world. he pardoned a turkey. he also tortured his daughters at the same time. it was so cute. we are going to share this, as well. a first look at the trailer for avengers, civil war. it has two of marvel's most popular superheroes fighting each other. right after this.

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live look right now, chicago, illinois. protesters out on the streets there. just over 24 hours after the release of that graphic video showing a teenager shot 16 times by a police officer. that officer has been charged with first degree murder. stephanie gosk, what is the latest? >> reporter: right now a small group and vocal group of protesters shutting down an intersection in chicago. a lot of people may know this is a magnificent mile, headquarters of shopping in chicago. the protest groups say they are planning a much larger protest on black friday hoping to

disrupt the economy a little bit here in the city and get their voices heard. as you can see already shutting down some streets. >> specifically, what are the protesters demanding? what do they want? >> reporter: there is anger here not just about the one officer but a system that they believe is corrupt. that's what they are calling for. they want the superintendent of chicago's police to step down. that is one of the things that they are calling for. there is an anger here about how long this process took. the shooting took place over a year ago and there are people that feel although this officer is facing first degree murder charge that that charge should have been placed almost a year ago and instead it took this amount of time. a lot of people wondering why that was the case. others are accusing the city of

not releasing this video until they were actually forced to and that there was a reluctant to charge this officer in the first place. these are all allegations that officials in this city deny. they say the tape was turned over to the state's attorneys office for an investigation that lasted until this point. the state's attorney said that, there is nothing more. >> the size of the crowd tonight compared to the size of last night's crowd? >> reporter: right now it is a little bit smaller. the crowd grew to a few hundred at one point and there were scuffles with police and arrests that were made. one officer was slightly injured last night and it is interesting because the young man who is accused of hurting that officer, he was charged with assault of a police officer. today that charge was dropped.

there is a presence of police that they are hanging back a bit, riding on bicycles. this is not an oppressive show of force from them. they are just letting the protesters move where they want oo move. >> it would seem to be a lesson that many in law enforcement learned in ferguson, missouri. on the streets in chicago, illinois. thank you. we will be right back. and knowing right when my packages arrive. so that's two things. introducing real time delivery notifications. sign up at myusps.com the first gummy multivitamin... ...from centrum. a complete, and tasty way to support... ...your energy... ...immunity... and metabolism like never before. centrum multigummies. see gummies in a whole new light.

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this afternoon huge news on the death of frank gifford. the family revealing the hall of famer who died last summer of natural causes also suffered from concussion related disease. our suspicions that he was suffering from head trauma were confirmed when a team of pathologists diagnosed the condition of a progressive degenerative brain disease. we decided to disclose the condition dating back to involvement of the player's association. researchers say cte is triggered

by repeated blows to the head. it can lead to memory loss, depression, dementia. i am joined by nbc medical contributor, dr. corey hebert thank you both for being with me. let me start with you. cte, this is not something that a lot of folks were talking about before so many of us started talking about concussions and football. how prevalent is cte? is it caused by taking frequent hard hits to the head? >> we don't know the exact prevalence of this. the reason is that the diagnosis can only be made post mortem. it is a diagnosis made when you do a brain biopsy after someone has been deceased. there was a recent report that looked at over 90 nfl players who donated their brains and

found a significant proportion of them had it. that is a bit of a skewed population a population of people who -- our loved one had symptoms. so the true prevalence is not known. >> is it possible for such a violent sport to figure out a way to prevent this problem from happening? >> well, due to the fact that there was some issue that they didn't want to admit that this was something that happened to the players i don't know how they can really do that because these symptoms mimic a lot of other diseases like alzheimer's disease, regular aging dementia. it is hard to say how you can actually do this until you see the patient had it after they died. but the symptoms, memory loss, aggression, depression, loss of balance, difficult walking all of these things come from

repeated brain injury and this concusive syndrome. this is also soccer and basketball, baseball. this is also the military. so this is a huge problem that we have to address on many different fronts. >> this week two university of minnesota doctors recommended that public schools, public high schools in the country eliminate football all together. they say that concussion stats back them up. we know that's not likely at least not in the near future. what things can be done medically if there are things that can be done to help keep kids safe who play football. >> the problem is in this instance the only way to prevent it is to absolutely avoid it because you just can't. they are going to do what they can with the right helmet. at the end of the day it's not just direct blows but rotational injuries where your body stops but your head doesn't.

it's created by the motion. it's created by the disturbance of the brain. while you are playing contact sports it will continue. >> is it like the case lots of diseases that we seem to talk about. one of the things where it was probably just as common place 15 or 20 years ago but now we have the ability to look at actual brains post mortem? >> i'm sure it was. as we were saying it is not so ease al distinguishable from other forms of dementia particularly parkinson's and alzheimer's and abnormal protein deposits are similar to proteins that are seen in alzheimer's although they are considered two different diseases. i'm sure that many of these football players were thought to have regular dementia of aging. it has been around probably for as long as contact sports have been around. >> what is this going to mean for the future of football?

>> i think that this is going to be a big boon for the people who are trying to sue the nfl. i will tell you this. it is a choice that each parent has to make at a very young age for their child. you have to look at the risk benefit ratio if you playing football and don't forget soccer and to see what the outcomes would be. >> last week there was a rams quarterback knocked out, concussion protocol not followed. there have been a number of quarterbacks who have had to leave the game. is that sufficient? do we know if that is going to make a difference? >> you would like to thank that all parties involved and the neurologists and the sports physicians who are helping them formulate regulations will be thoughtful about it. it is one thing to have a rule and another thing to implement it. >> frying a turkey tomorrow, you

be safe. dr. hebert happy thank ysgivingo both of you. i'm craig melvin. "hardball" starts right now. holiday fear factor. let's play "hardball." good evening. tonight from new york nearly 47 million people are expected to travel this week for thanksgiving. it comes at a time of heightened alerts and fears of terrorism. on monday the state department issued a world wide travel alert calling on u.s. citizens to exercise vigilance when public places are using transportation overseas. the fbi issued a bulletin warning terrorists could try to replicate the recent paris attacks on a smaller scal