"The Dallas Morning News says its investigation found that many of the agricultural supply and feed stores that used to stock a lot of ammonium nitrate have stopped selling it and others have implemented safeguards like moving the chemical out of dilapidated buildings and into fire-resistant concrete structures. But it reports many recommendations by safety investigators have gone unheeded.
None of the sites that responded to newspaper inquiries reported installing sprinkler systems. The state does not require them, but the U.S. Chemical Safety Board has said such a system could have stopped the West accident before it became a fatal explosion.
And despite calls for keeping stockpiles of ammonium nitrate away from populated areas, in up to eight communities tons of the chemical still sit near schools, houses, nursing homes and even a hospital, according to the newspaper's analysis of state data."