21.   A new law prevents companies from claiming some pre-merger losses on their franchise taxes after a merger is complete.

22.   A spokeswoman for the agency said that confidentiality laws prevented it from commenting on his situation or any other individual case.

23.   Advocates say the law prevents abuses in immigration cases.

24.   British Airways is prevented by law from building a system in the United States to feed its flights.

25.   But according to Owens, the new state law prevents anyone except the candidate or his or her designated representative from seeking the placement on the ballot.

26.   But Clinton points out that federal law prevents the states from acting on their own.

27.   But corporate executives say they are prevented by law from sharing assets between the two entities.

28.   But most corporations and government departments do not, and other laws prevent, for example, adoption by gay couples.

29.   But the city attorney maintains that state law prevents cities only from imposing licensing or registration requirements and does not directly apply to gun sales.

30.   But researchers generally agree that these laws would not prevent a lawful citizen from obtaining a gun.