Zhou Ruqing, an affable 20-year-old, has worked at Longhua for just over a year as a quality inspector on an assembly line.

WSJ: The Forbidden City of Terry Gou

Neither Texas nor the federal government restricts where facilities storing ammonia or chlorine can operate, said Neil Carman, a former inspector for the environmental-quality commission who is now the director of Sierra Club's clean-air program in Texas.

WSJ: Fertilizer-Storage Risk Is Often Overlooked

The changes announced by the government on Tuesday include a new chief inspector of hospitals to be appointed by the Care Quality Commission.

BBC: Did health regulator overlook problems?

Dorgan said the inspector general's report found KBR's work throughout Iraq was of poor quality, with more than 53, 000 sites in need of upgrades or repair as of March.

CNN: Take back KBR bonuses, senators urge Pentagon

"It is critical that the TSC further improve the quality of its watch list data because of the consequences of inaccurate or missing information, " said Inspector General Glenn Fine.

CNN: Justice Department report tells of flaws in terrorist watch list