Tatp Combusting News Today

>> looking at ccv, forensic work and speaking to witnesses. >> the bomb itself did not go off, which for law enforcement is a great thing because the bomb, in and of itself, its.sort of the fingerprint of the individual who made it. >> a timer was found on the device, that its clear that although this was a crude bomb, it was intended to cause much greater damage. >> we are only aware of one device. so we now have the remnants of that device. its been examined by our experts. >> once source brie...

Explosive that packs a nasty punch. this video shows tatp combusting. >> tatp is one of the most sensitive explosives known to the bomb tech community and it takes little initiation to set it off. >> reporter: tonight, the fact that a timer was used and the suspect is still at large has londoners bracing for the worst. >> the timer is what is freaking people out. did this individual place bombs in other locations? theyre sweeping all the tube stations right now at this time. theyre looking for o...