11.   But he cautioned against assuming that the pipeline was a certainty, noting that questions remain about its engineering requirements and commercial viability.

12.   But some analysts say it needs to buy more since its own product pipeline is weak.

13.   But the pipeline could be problematic, Barrows said.

14.   But there must be pipelines to get all that energy to market.

15.   But to thousands of desperate seniors in rural Arizona, that Washington pipeline is several thousand miles too long.

16.   But, to this poor republic the pipeline is still priceless.

17.   Company officials testified that they were confident that this approach, which they described as a standard industry practice, ensured that the pipeline was sound.

18.   Despite the problems, industry and federal safety officials believe that underground pipelines are the safest mode of transportation for hazardous liquids.

19.   For some rural communities, a new pipeline could be the least of their expenses.

20.   High-quality TV requires no government pipeline, and a government pipeline is no guarantee of high quality.