21.   According to most independent experts, NCs might cost less than half as much as PCs to maintain.

22.   But he and independent experts on campaign finance acknowledged that the burden of proof would fall on the Democrats.

23.   But independent legal experts doubt that the proposal, even as modified by the Justice Department, could repel a First Amendment test.

24.   But he said the research was conducted by independent experts, and that analgesics research is routinely paid for by drug manufacturers.

25.   But independent experts were intrigued by the lack of expected belligerence and a tantalizing reference to conditions for possible negotiations over economic and other issues.

26.   But independent marine experts in Louisiana and Alabama say the offshore industry has caused minimal environmental impacts in their states.

27.   But many independent Internet security experts believe the threat, if anything, has been understated by top government officials, including Reno and President Clinton.

28.   But most independent experts agree that for every day federal regulators keep the Bell companies out of the long-distance market, consumers needlessly pay higher rates.

29.   But other federal officials, environmentalists and an independent expert on pipelines contended that a double-walled pipe would be significantly safer.

30.   But some independent legal experts said they thought the sentence and the revocation of bond was fair.