21.   But finally, last month, the hospital said new tests had found high levels of carbon monoxide.

22.   But if tests find traces of VX, Iraqi credibility would be further weakened.

23.   But several weapons experts said that final French tests apparently found traces of VX components.

24.   But tests found that MTBE did more to reduce ozone than an ethanol blend.

25.   Company tests found that the Mylar was not as fire retardant as other types of insulation, although Gunter said it met FAA requirements at the time.

26.   Critics of routine screening also question whether tests are finding deadly cancers earlier or finding and removing cancers that may never be harmful.

27.   Current tests can find tiny amounts of cancer-causing chemicals that were undetectable when the law was passed.

28.   Earlier U.S. tests had found traces of chemicals linked to VX, a deadly nerve gas .

29.   For example, toxicology tests found that James did not have drugs in his body.

30.   French tests have found traces of chemicals linked to the nerve gas VX on Iraqi warheads, confirming earlier American test results, according to several weapons experts.