21.   Fighting it requires international cooperation over the long term.

22.   Halting the slide will require cooperation between the city and state, something that has been in short supply over the last year.

23.   He acknowledged that to battle the mob at the airport would require the cooperation of the Port Authority of New York and New Jersey, which operates the airport.

24.   He gave no specifics as to how that goal would be reached, other than to say it would require the cooperation of labor unions and large staff cuts.

25.   He said a confederation like the one proposed by Northwest is much harder to manage and requires extraordinary cooperation.

26.   In addition, Fein said, a formal conveyance would also require the cooperation of lenders who may be holding original shares as security for loans.

27.   In matters requiring cooperation between the White House and Congress, that seems certain to be true.

28.   It also noted that any reintroduction of wolves to the northeastern United States would require Canadian cooperation, since the wolves would probably spread into New Brunswick.

29.   It would also require cooperation by the government and transportation companies.

30.   It would require cooperation with Mexico and be the more expensive initially, but would have the greatest long-term benefits.