71.   But as ties between the boardroom and the classroom have increased, so have concerns about potential conflicts and instances of outright scandal.

72.   But because of how votes were then tabulated, there was a tie between Republican candidates Jefferson and Aaron Burr.

73.   But despite the personal intervention of President Clinton, ties between the emirates and the United States have frayed, Western diplomats and other officials say.

74.   But Finance Minister Masayoshi Takemura also hinted Friday at fundamental problems in the close ties between his ministry and the institutions it oversees.

75.   But in the convoluted ties between lawyers who have been called in for witnesses, supporters of Starr see a very different political tint.

76.   But he can be highly responsive to nuances of character in older women, especially mothers, and to the delicate, often desperate ties between parents and children.

77.   But it took another two-and-a-half years to negotiate initial ties between the two Germanys.

78.   But several American officials said the government has only limited evidence of a direct tie between Al Barakaat and al-Qaida.

79.   But so far, there is little sign that rising anger over the ballot measure among Mexicans seriously threatens the expanding economic ties between the two countries.

80.   But the agenda includes trade, economic cooperation and other measures to expand ties between Russia and North Korea.