i want to bring in evan coleman, who is a senior adviser on terrorism and flash point. so evan, if this was a bomb and terrorist attack, as we hear from allen there was no claim of responsibility, if it is terrorism why haven't we heard from somebody? >> yeah, i think it is an interesting question, brought up by the fbi and i think it's a very good question. in the wake of the downing of the russian airliner in sinai, isis issued a very clear report 24 hours after this crash. in this case, we're talking almost 24 hours or so since the downing of this jet and nothing has been issued. not from isis or al qaeda, nobody has claimed responsibility for this. does that mean definitively this is not terrorism or idea, we don't know, but we know that isis has tried to communicate because they issued statements about other things. we have to seriously ask ourselves even if they were to issue a claim now did they really do it? can they offer any type of proof they were really involved with this? i think there is a lot of cir e circumstantial evidence, but in the absence of any phys

evan coleman. evan, give us the facts here, would you? what do we know as to whether this is trichlt or not. there's nothing definitive. are there signs pointing one way or the other? >> look. twouchb curious things is this. if it's terrorism, it could likely be isis. when isis does things like this, they tend to claim credit very quickly. in the case of the russian airliner in sinai, they claimed credit within ten hours nchl this case there's been 48 hours or more since the crash of egyptair, their airliner. there's been nothing at all from isis. it's not that there hasn't been a communique. there's been all kinds of commune kay. in all of this they haven't mentioned a scintilla about egyptair. not a word. it's very unusual. if isis did this, this is a pereira occurrence for them. if it's somebody else, the question is how and why. >> are there other groups? we focus so much on isis. are there other groups out there. >> there's other terrorist groups that still wants to stay relevant in the game.

let's bring in nbc news terrorism analyst evan coleman.ghlight this because this is not an anonymous source or random individual, this is an official who was on camera saying that this is the possibility here. what kind of chatter or what can you tell us regarding isis and its focus on egypt as of late? >> yeah, look, there's no doubt that isis has issued a number of fairly serious threats to both france and egypt frankly in the last few months. of course we've seen a number of fairly serious terrorist attacks targeting infrastructure in egypt. that being said there's been no credible claims of responsibility from isis or from any other jihadi group thus far. there was some kind of audio recording distributed overnight but the date on the audio recording didn't seem to match, seemed to be a misprint. you ask yourself in terms of time frame, we rarely see isis take more than 12 hours after a particular incident takes place to take credit for it. and 12 hours has now passed. does this mean it's not terrorism? we don't know but it's rare for

joining me is evan coleman. it's been said the r plane's investigation is more likely evidence of an act of terror. if you were an official on this investigation, what are the links you would be looking for to definitively tie to it terrorism? >> the first thing we'd be looking for is claim to respond someone saying i did this or we did this. thus far, there have been no claims of responsibility from any, not akd, not -- akd akl qa not isis, nobody. there are just a few ways it could have come down. a surface to air missile laun launcher capable of bringing down an aircraft 30,000 feet over a large body of water 00s of thousands of miles from land, not a possibility. we're looking at explosive possibility onboard. was this terrorism? the only way to maybe say that was the same way we figured out in the case of the russian airliner over sinai, looking to see whether there's explosive residue on the wreckage acknowledged so critical we recover not just the black box but the wreckage itself. russian and interrogati

. >>> evan coleman is an nbc news terrorism analyst and senior partner at flash point. evan, good morning to you. >> good morning. >> more than 48 hours after this. you're quick to point out the fact that usually when a terrorist group takes responsibility it's 12 to 24 hours after the incident. what does that tell you? >> it's not absolute. there have been groups that claim acts like this weeks, months later. not isis. if we're talking about isis in particular, isis tends to claim credit for major international acts of terrorism within about 24 hours. if you look at the russian airliner in sinai, that was ten hours or less than 12 hours. we've heard nothing from isis, nothing about this. it's not that we haven't heard from them. they've been issuing communique after communique, their actual franchise in egypt has claimed credit for other operations in the last couple of days. they've said nothing about the egyptair airliner. the question is, if they're claiming credit for killing a policeman or blowing up a car, wouldn't it seem that they would want to claim credit for

coleman. there is no conclusion of any kind. officials are forward leaning and suggesting this could have been something that was not mechanical. evan, what about the groups in the region and not only isis but the whole area and especially the sideline now and with different factions. >> sure, and the factions that was brought down the russian hairli ha airliner, they were able to do that because they had an insider which is notorious for having terrible security. obviously, in egyptin, a lot easier to refer to an insider than it is in paris. one of the questions we have to ask for ourselves, if this is isis and al-qaida, they would they bomb an egyptair liner or 747 carrying hundreds of people. if this was terrorism, i don't think we know it for sure yet. if this was an insider, was this insider of paris degall? again, egyptian liners filled with mostly egyptians. the fact that isis issuing threats to france in the last few days, i don't think that has any connection at all to what happen here. there is no claim of credit from any organizations, isis, al-qaida, you name it. nobody has claimed credit yet. we have to be careful about