"More than half of all facilities licensed last year by Texas to carry ammonium nitrate lacked either secure fencing or locked storage areas for the potentially explosive chemical compound."
"But the state didn’t consider them a security risk.
An investigation by The Dallas Morning News also found that a state law designed to keep ammonium nitrate secured from would-be terrorists sets a lax standard for keeping Texans safe. According to the state agency charged with enforcing the 2007 law, it has acted only once to temporarily bar a facility from selling ammonium nitrate that had recurring problems."
James Drew and Matt Jacob report for the Dallas Morning News November 3, 2013.