similar scenario to play out here. what i ve heard over and over again from past and present officials what keeps them up at night is this threat, this insider threat that airport or airline worker with access to the most secure parts of the airport and the aircraft. we cannot be certain that the russian airliner was brought down by terrorist bomb, but because it s a strong possibility it s right to act. reporter: following a stunning assessment by the british prime minister activity at egypt s sharm el sheikh airport has slowed significantly as british aviation experts are on scene assessing security. you re talking about a system which is highly vulnerable to those who wish to corrupt it by money. and again, you have a natural system of these folks, of these expediters who are on a daily basis skating in and out of the system trying to push people through. reporter: with u.s. intelligence pointing to a bomb
that the russian airliner was brought down by a terrorist bomb, but it looks increasingly likely that that was the case. cameron s comments come as the russian and egyptian foreign minister as agreed to it was counterproductive to draw conclusions before the investigation is finished. at white house, josh earnest took a measured tone but says the u.s. isn t ruling anything out. at this point the united states has not made our own determination about the cause of the incident. however, we can t rule anything out, including the possibility of terrorist involvement. the president did a bunch of radio interviews today, and he was asked about this and he used the word, they can t rule out the possibility that it was a bomb, we know some people are overhyping what the president said, that s the language he used. let me go to jim miklaszewski at the pentagon. mik, has anything changed from yesterday to today? yesterday we were all sort of going, whoa, u.s. intel said this, this, and t
what they say, shep, is they re besting this on human intelligence or intercepts of telephone or internet communications, and you re right, they don t have the hard evidence yet, but the u.k. is so concerned about the security of the airport where the plane started from, they have suspended all the british flights and rescue flights to get some of the 20,000 britts stranded in the country are going to be starting tomorrow. here s what david cameron said. that we cannot be certain that the russian airliner was brought down by a terrorist bomb, but it looks increasingly likely that was the case. so i act on the intelligence, i act on the advice of experts. reporter: but again, you re right, shep, the white house just a couple hours ago said that they do not have conclusive evidence. other sources at fox are confirming that as well. got to be careful on this. it was russians on the plane, egyptians are the lead
investigators on the ground to determine what caused the devastating plane crash in egypt. sources confirming that u.s. intelligence that a bomb planted by isis brought down the plane. putin said it is speculation. british prime minister david cameron meeting with the egypt counterpart in london that it was too soon. there is an investigation in egypt and we need to see the results of that investigation. the reason we acted before that because of intelligence and information that gave us a concern that it was more likely than not a terrorist bomb. mourners gathers in russia and remembering one of the victims from the tragic crash. all 224 people were killed when it crashed on saturday.
terrorist bomb on the aircraft, but it remains a possibility that it was a structural failure in the aircraft and the intelligence community is not yet at a point where it really can confirm either hypothesis. we are obviously looking at what we can, what sources of intelligence that we have. probably the most definitive evidence will be what s actually in the debris field as well as what s on those black boxes. so we are yet to confirm anything at this point. but without saying that it is confirming or conclusive, david cameron and the brits have been so out front. here you ve got the prime minister standing at number ten next to the egyptian leader, al sisi, on a previously scheduled visit, calling vladimir putin and saying that the evidence does point that it is more likely a bomb. i have never seen a leader be that forward-leaning unless they have got some pretty interesting intelligence. i understand it to be intercepts. well, it is very