51.   But because many plants have thousands of employees, he added, it is impossible for the regulatory agency to oversee everything that happens at a plant.

52.   But can a sick plant have the equivalent of flushed cheeks?

53.   But if running the plant has economic advantages, he said, it would be wrong to close it for ideological reasons.

54.   But in the United States the commercial plants have an advantage because they perform the same activities over and over, experts said.

55.   But Lin Zhenhua, manager of civilian production, said the plant had a new focus.

56.   But many plants have a mix of monocot and dicot characteristics, attributable in part to a shared ancestry.

57.   But Nestor said there is little need to look for trends when plants have hundreds of violations.

58.   But the Doraville plant also has some labor tension.

59.   But the plants have had problems.

60.   But the Dagenham plant has had longstanding problems.