Spring Hangers News Today : Breaking News, Live Updates & Top Stories | Vimarsana

Explosives like this briefcase bomb can do. >> more damage to the seal. this is going to be a rich environment and we want to make sure we protect that. >> reporter: we spent the day with the class that had law enforcement from d.c. and atlanta and other places. most of the teaching is in a classroom setting. seeing the explosions and after math is what really hits home. >> three, two, one! [ explosion ] >> you can see the circular blast. you can actually see it. >> right over here we have spring hangers. by that we can tell exactly where the explosives were placed in the vehicle. >> reporter:...

Explosion, it would have probably been a very big fire. >> the federal government has trained more than 300,000 first responders. they see firsthand what explosives like this briefcase bomb can do. >> obviously, it has done more damage to our manican. >> reporter: most of the teaching is in a classroom setting. seeing the explosions and the aftermath is what really hits home. >> three, two, one. . >> you can see the blast. >> right over here, we have spring hangers. just by that, we can tell exactly where the explosives were placed inside this