21.   A proposed downtown Los Angeles arena has cleared a major hurdle, with the city Planning Commission approving a permit for its operation and a proposed development agreement.

22.   A win against the Chiefs would put them over a major hurdle.

23.   British Telecommunications is also frequently mentioned, but many analysts see major regulatory hurdles to such a merger, because the two companies have overlapping and competing businesses.

24.   But backers would still face a major hurdle, because the Senate has yet to introduce legislation embracing central features of the House bill.

25.   But despite her extensive background, Joyner-Kersee will face some major hurdles.

26.   But even if every company responds on time, there still is a major hurdle.

27.   But even if the mobility problem is addressed, the other major hurdle is persuading media companies or other partners to pay a licensing fee to print the codes.

28.   But even if Congress approves the amendments, the changes would still face major hurdles.

29.   But first, both teams have major hurdles to clear.

30.   But studio distribution executives said that the effort faced two major hurdles.