CNN Starting Point April 25, 2013 11:50:00
Extensive that state and federal investigators are using shovels to sift through the debris, looking for clues to what ignited the fire that led to the explosion. >> it could be remains of the explosion. transfer could be remains of the building, electrical components, federal lieser remains, chemical remains, and it could be the way the material is stored, maybe you will find containers, pieces of containers, a whole list of things they are looking for. >> this is an aerial picture of the federal lieser facility before the explosion. this part of the building is where the explosion erupted. t...
Source: archive.org