Texas fertilizer plant explodes

Forensic mappers work the crater at the site of a fire and explosion in West, Texas, on April 24, 2013. The West Fertilizer Co. plant in the small Texas town exploded days earlier on April 17, killing 15 people.

Forensic mappers work the crater at the site of a fire and explosion in West, Texas, on April 24, 2013. The West Fertilizer Co. plant in the small Texas town exploded days earlier on April 17, killing 15 people.