Page 3 - Plastic Explosive News Today : Breaking News, Live Updates & Top Stories | Vimarsana

Security lines at american airports. what kind of bomb could have been used and what kind of damage could even a small bomb do? we went to the experts to find out. >> reporter: that explosion a half pound of dynamite, a conventional explosive mainly used in industrial settings. it packs a massive wallop. the explosion moving about 19,000 feet per second. it could easily cripple a passenger aircraft. seems too simple. >> yeah, it is. well, when the bad guys make the improvised ones, it's the same process. you can see how fast it could be done. >> reporter: c-4, more powerful than dynamite. that...

This is cnn breaking news -- >> breaking news this hour. cnn has learned that egyptian security officials have interviewed and investigated each person who serviced the russian plane before it took off from the sharm el sheik airport and then broke apart in flight. the source says all airport cameras, sensors and related information were confiscated, even before the crash was public. here in the united states, intelligence sources are telling us that they are sharing more detailed scenarios about this disaster and theories that an airport insider planted a bomb on board. some officials tell cn...

>> even more powerful than diet mite. how many feet per second? >> 30,000. >> that's just over a half pound of c4, a plastic explosive that is tough to go out and buy in the united states, but in some countries a similar explosive can be bought on the black market. >> joining me to discuss this is safety analyst david suz si, a former safety inspector. this video is eyebrow raise whg you see how small this is, the power that's in something this small. how sophisticate rd devices like this. how easy are they to make and to hide? >> well, as far as of the ease of hiding, can you get into it into...

The beginnings tracked by forensic bomb expert thomas anthony. >> this is a classic c-4 explosion? >> it is. less push and more sort of force like that. we have less residue than a low explosive. >> starting with a c-4 bomb, a type of plastic explosive, the civil aviation security measure caulk wauks ugh floug the impact of several types of bombs and the telltale signs they leave behind. >> the residue of the black powder coming from to a central point, look at the edges here. the edges in the black powder very, very different. they have this sort of like almost coral-like look to them. this i...

Isis chatter, so to speak. we don't know if that cell phone conversation, online postings, isis well-known for using very secure chat rooms. the u.s. monitors isis communications secretly covertly as much as it can and it does appear that isis chatter about this, a claim of responsibility not a public claim, but some other sort of more covert claim in their chatter is at least a key part of what captured the u.s. attention. >> okay. so this idea that someone at the airport, to use the exact words i think you used was involved, what does that actually mean? someone who services the plane, who h...