with litvinenko. reporter: and what did that message say? look, there are people ready to kill you. reporter: the emails amounted to a hit list and the next name up alexander. reporter: alexander, as in litvinenko. scaramella says that is why he met with litvinenko in london to tell him about the hit list and to warn him. but, he says, litvinenko didn t buy it. he said, mario, don t care about that. reporter: he says, it s b.s.? i think it s just a provocation, but please check what s happening. reporter: but after what happened to litvinenko, scaramella says he takes the hit list seriously. are you frightened for your life? well, do you have another question? reporter: scotland yard questioned scaramella and eventually cleared him. why? because if your re looking for it polonium is traceable. using specialized equipment investigators were able to track
using specialized equipment investigators were able to track it in people and in places. once polonium 210 had been identified then across europe like the slime from a slug all the way across polonium was popping up everywhere. but not in scaramela. no polonium in his body or anywhere he had been. so scotland yard took a hard look at the two russians. when detectives retraced their steps they found polonium contamination everywhere. we see the same finger prints of the polonium in multiple places where they were. business offices, hotels, a hookah bar, a strip club, a soccer stadium and the millennium hotel s pine bar is where investigators hit the jackpot.
windshield. a fire on a jetliner. the piece of equipment investigators are looking in to after flames broke out on a british airways plane with nearly 200 people on board. that s next. a pastor accused of being on the ashley madison website ends his life. on the internet. of things. what we re recommending as your consultants. the new consultants are here. it s not just big data. it s bigger data. we re beta testing the new wearable interface. xerox believes finding the right solution shouldn t be so much work. by engineering a better way for people, process and technology to work together.
institute. chad, let me start with you, walk us through what equipment investigators have to find the black boxes and how that works? we call them black boxes. they re orange but they re boxes. two of them, one for data, one for voice and other sounds in the cockpit. the data is very important to know what was the angle of the rutter, what was the angle, what was the depth, what was the altitude? all of those pieces of data inside this box. and it says do not open. there are data ports, one here and on the other side, you don t need to open this up. if it s damaged and they need to try to repair it or massage the data, that s going to happen.