Not that any of the conspiracy freaks on this thread will care, but the explosion locally was said to have been in a grain bin. Grain dust (corn dust especially) is highly explosive, but the MSM could hardly pass up the opportunity to blame this accident on something that apparently wasn’t involved.
Ah, A Class II, Division 1, Group G Hazardous Area (inside the grain bin).
http://www.osha.gov/doc/outreachtraining/htmlfiles/hazloc.html
Harder to ignite than the Class I environments, but has killed many people and destroyed many structures over the decades.
Yup, a bit of investigation finds that this has NOTHING TO DO WITH FERTILIZER, but all of the media (with the sole exception of USA today) wen't with fertilizer in the headline.
Grain elevator explosions are extremely common; there was more than one a month during the 1990s.