atmosphere of hostility and now we're seeing what happens when folks aren't listened to. we're seeing what happens when we get foreign aid without accountability. yes, israel has been a strategic partner, but i think we have to reassess our relationship with israel given our taxpayer dollars with no accountable. >> i think they would argue what hamas did was excusable. but we do have to leave it there. we're out of time. thank you so much for being with us. thank you so much for the time. we should pick up this conversation at a later time. "the lead" with jake tapper starts right now. >> announcer: this is cnn breaking news. >> welcome to "the lead," i'm bianna golodryga in for jake tapper. the fbi is investigating a car explosion at the u.s.-canada border near niagara falls. two people in the car died. this happened just a few hours ago at the rainbow bridge connecting new york and canada according to law enforcement sources, the car for some reason accelerated on the u.s. side. then went airborne and crash landed exploding near a checkpoint. in response, authorities quickly shut down all four land border crossings between the u.s. and canada near niagara falls. let's begin our coverage with brynn gingras. law enforcement officials from canada an the u.s. are now looking into this. what more are we learning? >> reporter: a lot of law enforcement on the ground there. i want to get right to some video that we just got into our newsroom. it is surveillance video showing the point of impact when this explosion occurred. and i do want to warn you, you that you may find this video disturbing as we play it for you. but what we have learned from sources telling our john miller that what they know right now, again, a lot of questions still being answered at this point, is that a vehicle was crossing from the u.s. side at the border and at some point had a high acceleration of speed. hitting a curb, causing the vehicle to go airborne and then crashing into a checkpoint area of this crossing, causing that giant explosion. and as you look at the video right now, you could see all of this smoke, all of the flames, this is at what point that investigators are working with as they try to figure out exactly what happened here and what was the intention here. was it something sinister? was it something else? that is the answers they're trying to get. we know that two people were inside of that vehicle and the two people have died. as you mentioned, four of the border crossings are now shut down. a number of security precautions are now in place in that area. but also in this part of the country, in that area, we know that the airports have heightened security to the point that they are now doing extra checks on passengers in the airports on this busy travel day. there are bomb-sniffing dogs checking cars and a number of other checkpoints happening and we also know there is increased security in other major cities. we learned that is happening in d.c. we also learned that nypd is helping with this investigation. so a lot of the answers -- a lot of questions still need to be answered but investigators federally and locally and in the state on the ground trying to get those answers, bianna. >> thank you. i want to turn to cnn chief law enforcement analyst john miller. john, what are your sources telling you about how and why this might have happened? >> well, as it is developing, they are looking at the videos from the scene. which show the car exploding there. but they're also able to identify from parts of the vehicle that they found a registered owner. so they know who the car belongs to. they've traced the car's movements backwards through other videos. it appears to -- before the -- before the car mounts the divider and goes airborne, it appears to leave a nearby casino. and they are now trying to find friends and family members of the registered owner of the car to learn more. they're also working with that casino to get video to see if they could see what is the person associated with that car before it leaves. but, in the meantime, it is looking like in the original assumptions that caused this immediate reaction, that it was a car, that it exploded after being directed to the secondary screening area, so we know those things aren't the case. we know that the car wasn't directed to secondary screening, it is where it landed after it flew over the divider. that would be very hard to do intentionally. so, this is a very fluid situation. as you know, the bridges have been shut down between the united states and canada. airports security has been increased. so we've seen a quick reaction. but as this appears to look more and more like some kind of car accident, whether it was a medical issue or a driving under the influence issue or something else, i guess the questions will be asked at what point are we overreacting? >> well, we know now that at least one of the passengers has died. how does that impact the investigation, john? >> well, there is the operating theory that the person who the car is registered to is likely the one who was operating at, who is likely the one who was operating the vehicle, likely the one who was at the casino. but those all are investigative theories that need to be confirmed through investigation and so on. it is also less clear that there were two people in the vehicle. in that the vehicle was so completely obliterated on impact, and the parts and the victim or victims were obliterated by the impact as well as the fire, it is not entirely clear whether there were two people. human remains were found in one location and another location which spurred the theory that there may have been two passengers. but at this point, as they've gotten deeper into the scene, it is just as possible that that was the individual who was driving and may have been by himself. >> yeah. and i mean it just is a reminder how fluid this situation is right now. investigators are fortunate in that the fact that they have quite a lot of surveillance video that they could come through given the location of this incident. >> interesting. i mean, if you do anything at any of these checkpoints coming from earth side of the bridge, the surveillance video is plentiful and high quality. but the best video that we've seen so far comes from one of the check points. but it is basically, it is almost off camera. it is a video that you'll see soon where you could see the vehicle kind of in the upper left -- upper right-hand side of the scene traveling at a high rate of speed and going over the wall and then you see the explosion afterwards. but that is on a local road, on the u.s. side of the border. and it is a road where if you're on that road, you're not committed to crossing in canada. but once he flies over the divider, he ends up at a secondary screening location where you would have been directed if you were coming from canada into the united states. some of the confusion about whether he was headed to canada or heading to the united states was bourne out of the fact that the side of the road that the car landed on would have been the direction coming here when actually there is no indication he ever left the united states. >> all right, john miller, thank you. i want to turn to pete muntean who is tracking how this is impacting holiday travel. how are airports responding to this? >> reporter: as we're going, into one of the busiest pre-holiday travel days of this thanksgiving rush, we're hearing this just now from the faa. that the buffalo, nyaugust raw airport is clowed because it is a huge port of entry for private flights that come in from canada and into the u.s. a third busiest airport in the state of new york. they had 5,000 flights last month, 2 million passengers a year. we're also hearing this from the authority that oversees that airport. they say their screening cars in addition to passengers. that are coming into the airport and they're trying to get the word out on this huge holiday travel day. for passengers to factor in some extra time into their trips, flights domestically are still arrived and departing. but the tsa said it is in a heig heightened state of security posture, something that it has been in due to the situation in israel. and i spoke to tsa administrator about this just the other day and he said there are things that you may see that are different, things that you may not see and they always need to be alert. listen. >> we're always looking at threat. always assessing the risk across the entire system. not just here in the united states but also at last point of departure airports internationally. so we do things that passengers might not even notice. >> reporter: things are relatively situation normal at reagan international and by the end of the day we could anticipate 2.7 million people passing through security at america's airports. still an unfolding situation as this impacts travel. >> pete muntean, thank you. i want to bring in andrew mccabe. he served as deputy director of the fbi. good to see you. so we know that the buffalo fbi is now taking the lead in this investigation. talk to us about what they're assessing at this moment and how does an investigation like this even begin? >> sure. it starts at the scene. you have all sorts of tactical assets and s.a. bomb technicians that respond to the scene in order to render it safe. they want to make sure there is not an explosive device there that could hurt any of the first responders. once they do that, it is -- we bring in the evidence response teams and they know how to disassemble everything that is taken place there. document what we have for evidence and really maximize this significant investigation of that stuff on site. at the same time, you have teams of analysts and other agents working back in the buffalo field office and they are trying to exploit every piece of information that we could get from this vehicle. so we know who the vehicle was registered to. we tried to identify those people. to identify their family pebs and associates. and then we have agents out in the field contacting those individuals to try to help us identify who was in this car and what might have motivated them, what they might have been doing that day and or what might have led to this either horrible accident or intentional act that could have caused loss of life and a lot of damage. and then, of course, there is a very robust exchange going on with our canadian colleagues. we work very closely with canadian law enforcement and intelligence and i'm sure they are shoulder to shoulder working through these issues. >> we were taking a press conference with their transportation minister on this issue. as you look at the scene and images, what jumps out to you first and what do you make of the fact that the car accelerated before it crash and exploded? >> sure. so the acceleration, when we learned about the acceleration, that is the first thing to me that jumped out against the theory that this might have been sort of an intentional detonation of an explosive device. it is not consistent with the way that terrorists or operatives work. if you had a vehicle that was rigged up to explode, you wouldn't draw that sort of attention. you wouldn't have to attack the place before you detonated the device. so those -- those two things didn't seem to be consistent. it certainly still looks like an intentional act. but it could have been one that could have been a mistake, now that we know they were on a separate road and actually landed where they did because they crossed the barrier in air. that introduces all sorts of questions as to exactly where was this vehicle going, what were they trying to accomplish before they ended up on fire and upside down on the border. so i think, as we've gotten deeper and been able to put more facts around what happened, i think that the question of why and what was the motivation and the intent here has gotten muddier and less likely to be an act of terrorism. >> would there be a search for residue or explosives here? >> absolutely. absolutely. i think those -- some of those initial responders would be special agent bomb technicians, they have the technology and the devices and robots an all sorts of ways to conduct that search for explosive trace residue without putting people in jeopardy. i'm sure that is probably already happened by now. >> andy mccabe, thank you for joining us. happy thanksgiving to you and your family. >> you as well. ahead, the other big story, most significant moment of the israel-hamas war since the initial attack on october 7th. i want to bring there my colleague kaitlan collins who is live for us in tel aviv. kaitlan. >> reporter: right now we're less than 11 hours away from what we expect to be the first pause in the fighting that has happened, the first serious one since october 7th. also potentially the first release of those hostages. to be released that were taken on october 7th by hamas into gaza. ahead we're going to talk about how this process will go down. also, ask the question what if one side does not keep its word. does the deal collapse? we'll speak to a spokesperson for the israel defense forces right after this. we are live here on the ground in tel aviv, israel, where we are just about 11 hours away from the beginning of a planned temporary truce. it is expected to result in the release the of at least 50 hoffages as a part of deal that has been negotiated, a pause in the fighting is scheduled to start at 10:00 a.m. here, 3:00 a.m. eastern time tomorrow. that is what we're hearing from sources as the white house believes at least three americans will be part of this group of 50. that is one toddler and two women leaving ten more americans still unaccounted for. orren lieberman is here with me in tel aviv. we just heard from the war time cabinet led by netanyahu about the details, the first that we've heard from them since this was signed off by the israeli cabinet last night. what are their expectations for what this will look like tomorrow morning. >> they expect this to happen. even if there is continued fighting, we are not a point where the pause and from netanyahu is that this goes into effect at 10:00 in the morning. they didn't give many details. most of the details have been from sources outside of israel. but first, they expect it to go into effect. and also netanyahu acknowledged that in hostage rescues, sometimes a military option is possible. here it wasn't. it required diplomacy. he thanked joe biden for his effort to improve the terms of the conditions and then opened up the possibility as we've reported that it could continue beyond the first batch of 50 israeli hostages ant the 150 palestinian prisoners if they abide by both sides. >> but he was asked what if this doesn't hold and there is a breach in that cessation of hostilities. he didn't make clear what that -- he didn't draw any red lines of what that would look like if something does happen. >> he was asked what happens if a soldier is shot. a pretty clear incident. he wouldn't say yes that is the moment where the agreement breaks down. he simply said the forces in gaza, the israeli troops there know how to handle themselves. they're ready for this in and position for this and said we'll handle this as it happened. so he didn't want to put a red line on it and have to be committed to a point where the deal falls apart. >> we'll wait to see what that looks like. obviously a lot of unknowns here. thank you for that. of course, there are major questions of what this is going to look like. once this is expected to start at 10:00 a.m. local here. 3:00 a.m. eastern. for now i want to bring in lieutenant colonel jonathan rodriguez. what role are they going to be placing in this hostage negotiation. >> thank you for having me. what we will be doing is to execute government policy and directives and to facilitate the safe transfer of israeli hostages, women and children, after 47 days of hamas captivity. back home into safety. we will do so while remaining very vigilant on the ground. mindful of the fact that we're dealing with a hateful terror organization. that has a proven track record of violating cease-fire agreements on the ground. >> and are you worried that they could violate this temporary cease-fire that you've agreed to? >> we are definitely mindful of their ability to do so. and we remember what happened in 2014 when there was a u.n. brokered cease-fire, which was violated by hamas and they killed and ab ducked an israeli officer, lieutenant hadad golden and had been holding on to his body ever since. so we're mindful of the fact that this is definitely a possibility. which, of course, indicates that we have to be very vigilant and be dynamic in our posture, ready for any event. i think our intention is very clear. we want to see our hostages back and if there is this diplomatic effort that could be successful, that is a good thing and israelis will be returned to their loved ones. but if hamas tries to take advantage of the pause and use it for tactical activities, we'll be ready to respond in kind. >> and has the idf been told when the military should stop firing? you have been told 10:00 a.m. local tomorrow? >> so, we are aware of the official 10:00 a.m. guideline. and we are conducting operations accordingly. we will wait for final orders and directives to be given from the government, from the cabinet. but we are -- that is for planning purposes. as of now, we'll see how things develop during the night and we'll see what the situation is. and then we will wait for final instructions and we're ready to walk back. >> we just heard from the prime minister about the red cross being able to reach all of these hostages including those who were not going to be in that initial group that is being part of that exchange. how realistic is that that the red cross will actually be able to access the rest of these hostages? >> well, we definitely hope that efforts will be made by the red cross in order to execute and implement the responsibility as the leading humanitarian organization, chartered exactly to provide that service to hostages during war time. we're hopeful that it will happen. and we will, of course, try to facilitate it. how realistic it is, i cannot comment on it. but it is definitely our expectation that it will happen. >> i heard from the former prime minister of israel earlier today, bennett said that he's worried this will allow hamas time to regroup, knocking down your opponent and helping them get back up. are you concerned about what this pause will allow hamas to do? >> yeah, one would hope that hamas would use the pause in order to care for the humanitarian needs of the palestinian population. but i think that would be a naive way of thinking. i think that what hamas will use, the time will be for the military purposes. they will try to regroup, they will take a breather from relentless idf pressure on them. and from a tactical point of view, i could understand that this will be beneficial. hamas has been asking for this. so they are interested in having a pause in operations. but i'm also equally confident that the moment, the minute that the deal is concluded, hopefully successfully, we'll go back to military operations and we'll continue to bring pressure upon hamas, upon the leaders, their infrastructure, and the combatants and the entire system that supports them and to bring to their demise military and political so that never again will we find ourselves in that situation where israelis are held hostage by a terror organization from gaza. >> what is the idf been told to do during this four to five-day pause initially if hamas violates it, if they do fire on israeli forces in gaza? you have been told what your orders are for that or do you wait until that happens and t