Looks like the USMB lynch mob is out for blood again. After chasing every two-bit report about the Boston bombers and accusing the innocent, now they're after the fertilizer plant operators and the government, in spite of the fact that NOBODY YET KNOWS WHAT CAUSED THE EXPLOSION!
they had over a 1000X the legal limit. had they not had that amount the explosion may not have occurred or if it had, it would have been far less damaging. the government did not have proper oversight of this extremely large facility.
doesn't matter what caused it, the damage is the fault of the owner and to a lessor extent the government.