. >>> cbs news transportation safety analyst and former ntsb chairman mark rosenker joins us from ourondon bureau. good morning. i want to ask a quick question about the priority of the government right now. does it have to do with locating the wreckage or getting black boxes? where is the priority? >> they have to find the wreckage before they can find the boxes. also, they're very intense at getting the human remains back to the families, recovering as many as possible. at the same time, making sure that they identify them and get them pack to the families. >> in regards to the black boxes, tell me about the challenges. how long will the boxes be sending out pings, and how deep is the water there? >> the regulations require that these boxes have a battery that can emit the signal for at least 30 days. we may get lucky and get a few days more, maybe a week. we're dealing in 10,000 feet of water. and that is a very challenging depth to be trying to locate these boxes. >> we've been hearing reports that there might have been smoke in the cabin prior to the plane going down. does that t

bring in cbs news national transportation safety board expert and former chairman of the ntsb, mark rosenker from london. we know 56 were on board, ten crew members. the flight had crossed into egyptian airspace and had a ways to go before it was close to cairo's airport. it was at a cruising altitude, we understand, 37,000 feet, about ten miles from the egyptian airspace. let's talk about what might be happening now. it's believed that it went down around the mediterranean sea. i assume that investigators are looking in two areas. they're considering what might have brought this plane down could and they're looking at the search and rescue or recovery efforts. what's happening right now in terms of this mystery? >> the first thing they have to do is find the aircraft. they'll be trying to listen for the emergency locator transmitters which, in fact, go through a satellite. hopefully that will pinpoint where most of the aircraft might be. they'll be looking carefully to find, to recover the black boxes, flight data recorder, cockpit voice recorder. it will help discover if this was an accide

cbs news transportation safety analyst and former ntsb chairman mark rosenker says an explosive device with a timer could have been put on board anywhere. >> that's why the investigators are going to be looking at all of the stops that this aircraft made prior to coming to paris. they're going to make a serious examination and series of interviews with anybody who had any type of exposure to this aircraft, whether it was cleaning crew, whether it was catering crew, whether it was the refueling crew, or whether it was the baggage crew. >> airbus a-320s are a workhorse of the aviation industry with a good safety record. >>> the egyptair crash comes as the tsa is taking heat for long lines at airports nationwide. this morning the head of the transportation security administration is in chicago where the long wait has meant hundreds of passengers missed their flights. kris van kleave reports. >> reporter: growing flyer frustration made for tense moments at chicago's midway airport. >> you're walking to the back of the line where you belong -- >> reporter: across town at o'hare, passenger s

. >> reporter: cbs news transportation safety analyst mark rosenker. >> were there problems with the highway itself, were there weather issues, was the driver fatigued, was there a medical incident with the driver, was the drive distracted? lots of questions before the ntsb will understand exactly what happened. >> reporter: the majority of patients were treated at doctors hospital in laredo. extra staff had to be brought in to deal with the chaotic scene. chief nursing officer damon mott -- >> we immediately put our disaster plan to place. staff started pouring in immediately both from inside the hospital and from outside the hospital to mount our response to the disaster. >> reporter: investigators have not released the identity of the driver or any passengers. according to the associated press, last year the owner of the bus, oga charters, was ordered by louisiana inspectors to take one of its carriers off the road to fix brakes and emergency exit problems. jamie yuccas, cbs news. >>> the ntsb is also investigating the crash of a stunt plane at a weekend air show. the single-engin

. >> reporter: cbs news transportation safety analyst mark rosenker. >> were there design factors in the highway itself? were there weather issues? was this a mechanical failure was the driver fatigued? was there a medical incident with the driver? was the driver distracted? lots of questions to be asked before the n.t.s.b. will understand exactly what happened. >> reporter: the majority of patients were treated at doctors hospital in laredo. extra staff had to be brought in to deal with the chaotic scene. chief nursing officer damon mott. >> we immediately put our disaster plan into place. staff started pouring in immediately, both from inside the hospital and outside the hospital. to mount our response to this disaster. >> reporter: investigators have not released the identity of the driver or any passengers. according to the associated press, just last year the owner of the bus, o.g.a. charters, was ordered by louisiana inspectors to take one of its carriers off the road to fix brakes and to fix brakes and emergency exit problems. >> quijano: nearly a dozen people were hurt in a f

chairman, mark rosenker. >> that's why the investigators are going to be looking at all of the stops that this aircraft made prior to coming to paris. they're going to make a very serious examination and series of interviews with anybody who had any type of exposure to this aircraft, whether it was cleaning crew, whether it was catering crew, whether it was the refueling crew, or whether it was the baggage crew. >> reporter: the search for wreckage, in fact, has become a bit of a mystery of its own. the egyptians said earlier today that greek search crews had, in fact, found debris from the plane, but the greeks later said they had found nothing of the kind. in any event, the mystery of this flight will not be solved unless and until the black box, the data recorder and the cok pit voice recorder are found, and they, charlie, are presumably at the bottom of the mediterranean sea. >> rose: thanks, mark. egypt air expressed condolences to the families of those on board. most were from france and egypt. holly williams is in cairo. >> reporter: families came to cairo's airport today look

mark rosenker, important information.u very much. >>> coverage of the missing egyptair flight continues all day on our 24-hour streaming network, cbsn. >> i keep thinking about that plane. we go to bed and wake up, and i think of the families waiting for word. >> all of a sudden their life is >> not good what's happening there. >>> vice president joe biden writes an emotional note to his younger self. ahead, his reflections on reaching some of his greatest dreams and coping with a devastating personal loss. first, >>> senior citizens are turning to pot. why there's been a big jump in older people using the marijuana. >> what's older? what is older, norah? >> i don't know. what do you call it, pot, marijuana? ahead on "cbs this morning." >>> when joe biden was just 29, he became one of the youngest ever elected to the senate. and he's remained in federal government in the 44 years that followed. at age 73, biden, the 47th vice president of the united states, looks back on a remarkable areer and life in our emmy-nominated s

townsend and former national transportation safety board chairman and cbs aviation safety analyst mark rosenker, who is in london bureau, mark, start with you. based on the pack that what you know now, what is this investigation going to be like? how long is it going to take? >> well, this is going to be a very long investigation. this is a major accident investigation and they typically in the united states take about a year. the egyptians are telling us that their preliminary report will come out in about a month which is about when we will find most of the facts. probably be very little analysis coming in that report but at least lot more information to be able to try to understand exactly what happened here. >> dickerson: you think it could be a month before we get to the central question of whether accident versus intentional act. >> absolutely. unless there is something which, to use silver but let or smoking gun, we're going to have to wait awhile to do the forensicss necessary to do a methodical examination of everything that we recover and particularly we have to find those black boxes

former ntsb chair mark rosenker. >> it would be kind of like you driving down the belt way and you are in deep thought or listening to something and you were supposed to get off on an exit and you missed it. you really don't realize where you are at that moment. >> that may night approaching the frankford curve the train hit 106 miles per hour. more than twice the speed limit. bostian hit the brakes mere seconds before 188 derailed, eight were killed, some 200 were hurt. >> there has been no public acknowledgment of mr. bostian of his wrong-doing. >> minutes before the rec, bostian recalls radio traffic, dispatcher and septa commuter train talking about a rock hitting a train. >> the dispatcher asked him couple of times if he needed medical attention, bostian said they went back and forth a few time. >> as train 188 approached the commuter train, bostian said i blew my whistle quite a bit. i was concerned with all of the confusion on the radio that they may have personnel on the ground. two investigators bostian liking the event to a trigger reminding him of a california co-worker naug

have been loaded anywhere says cbs news transportation security analyst and former ntsb chairman mark rosenker. >> that's why the investigators are going to be looking at all of the stops that this aircraft made prior to coming to paris. they're going to make a very serious examination and series of interviews with anybody who had any type of exposure to this aircraft whether it was cleaning crew, whether it was catering crew, whether it was the refueling crew or whether it was the baggage crew. >> reporter: the search for wreckage, in fact, has become a bit of a mystery of its own. the egyptians said earlier today that greek search crews had, in fact, found debris from the plane but the greeks later said they had found nothing of the kind. in any event, the mystery of the flight will not be solved unless and until the black box, the data recorder and cockpit voice record remember found and they presumely are at the bottom of the mediterranean sea. >> rose: thanks, mark. egyptair expressed condolences to the families of those on board. most were from france and egypt. holly williams is in cair

have been loaded anywhere, says cbs news transportation security analyst and former ntsb chairman mark rosenkerstigators are going to be looking at all of the stops that this aircraft made prior to coming to paris. they're going to make a very serious examination and series of interviews with anybody who had any type of exposure to this aircraft, whether it was cleaning crew, whether it was catering crew, whether it was the refueling crew or whether it was the baggage crew. >> reporter: the search for wreckage, in fact, has become a bit of a mystery of its own. the egyptians said earlier today that greek search crews had in fact found debris from the plane, but the greeks later said they had found nothing of the kind. in any event, the mystery of this flight will not be solved unless and until the black boxes, the data recorder and the presumably at the bottom of the mediterranean sea. >> thanks, mark. egypt air expressed condolences to the families of those on board. most were from france and egypt. holly williams is in cairo. >> reporter: families came to cairo's airport today looking for ans