It Detonates News Today : Breaking News, Live Updates & Top Stories | Vimarsana

to clear. elsewhere on thursday it has a bright day, sunshine, one or two showers, a breeze in western scotland and fresher for all areas, the high teens and low 20s. closer to the seasonal norm. friday, a rather cloudy day with outbreaks of rain, most in the north and west. the weekend is brighter but most of the showers in the north and west and warmer and brighter in the south and warmer and brighter in the south and east. thanks, stav. and that's bbc news at ten theres more analysis and that's bbc news at ten. newsnight with victoria derbyshire which isjust getting under way on b...

Usually shown on fictional bombs. you have said and so many experts have said they remind viewers, not a single one of these bombs has gone off. from an investigative standpoint, what does that tell you? >> well, one of two things. he did not take the time to develop the technical capability of having the devices actually detonate, as he would if he wanted that to happen. he did not have the technical capability. he wasn't practicing. he didn't work through the details. or two, this is for show. the explosive powder, whether it is gunpowder or something else, something compacted within a pvc p...

Practice and train on. >> reporter: jon stewart is the director of the fbi's hazardous devices school in huntsville, alabama. >> there's about 2900 that protect us across america and they all come here for their initial training. >> reporter: bomb techs embedded with s.w.a.t. teams after pressure cooker bombs were used at the boston marathon. a couple used bombs to kiln san persokill insan bernardino two . >> this is category a. you have a hostage and a live device and something called a dead man's switch. the hostage takes the thumb off the button, it detonates. >> it's a risky procedure. the...

>> we take them from a police officer or firefighter with no background to a position where they can successfully navigate their way through a call. >> bomb techs embedded with s.w.a.t. teams after the brothers used pressure cooker bombs at the boston marathon and terrorist couple used bombs to kill in san bernardino california two years later. fox news went inside the training. >> you have a hostage and a live device and something called a dead man switch, if the hostage takes their thumb off the red button, it detonates. >> removing hostage devices is the riskiest procedures because all the ...

For me that's an opportunity. if they can locate one single device before it detonates, that should accelerate the investigation. the other thing is, a bomb maker like this has to leave a trail somewhere. has someone ever been in his house and seen things that are unusual. somebody like this, has he ever been now the the back yard testing devices. one of the questions you'll have here is sorting through a ton of tips on a tip line to determine if someone ever saw something over the course of time when this guy or would plan was trying to build capability that goes into a tip line. all that stu...