51.   But he cautioned that negotiations on direct links in trade and transportation could not be divorced from the larger political issues.

52.   But he could be a link in a coalition against Yeltsin and his team of economic reformers.

53.   But it proved to be the weak link in an already fragile chain.

54.   But many other Bush administration officials remained skeptical of the potential Iraq link in the attacks.

55.   But military officials familiar with the programs said they concentrate less on weak links in the cocaine trade than on shortcomings of the Colombian army.

56.   But the manifesto is the strongest link in the chain of evidence being forged by agents and prosecutors.

57.   But the weak link in serious news coverage of religion has always been television.

58.   But the complaint nonetheless sheds light on the civic association, which appears to be an important link in the corruption inquiries here.

59.   But there may be a nicotine and alcohol link in the brain as well.

60.   But the next links in the chain reaction are unpredictable.