21.   But because the cell lines are derived from human embryos, although ones due to be discarded, opponents of abortion had objected to federal approval of the research.

22.   But BellSouth is not expected to have federal approval to offer long-distance for months, so such a deal could be stymied by regulators.

23.   But furious Nevada officials, using all their political clout, have thus far managed to fend off final federal approval.

24.   But last year, as AOL and Time Warner were seeking federal approval for their merger, Time Warner Cable announced an agreement to begin carrying EarthLink.

25.   But one antitrust expert said it would be tough for the state to go into court alone in an attempt to block a merger that has won federal approval.

26.   But on Friday McCurry said the state would not need federal approval if Congress passed legislation to revamp welfare nationwide.

27.   But over the next century, state officials bought and sold their land, in violation of laws and court cases requiring federal approval of Indian land transfers.

28.   But Robboy said details of the integration strategy would not be made public as the merger awaits final federal approval.

29.   But Ronan has won federal approval for the tutoring vouchers.

30.   But the Voting Rights Act stipulates that states such as Georgia, with a history of voter discrimination, must submit their redistricting plans for federal approval.