31.   But a weapons system this complex must go through long and rigorous testing before engineers can be sure it will reliably shield American cities from enemy missile attack.

32.   Bush did sign a law that prohibits Texas cities from filing liability lawsuits against gun manufacturers.

33.   But anecdotal evidence suggested Monday that public unease about the spread of the virus was growing as people returned to the city from the holiday weekend.

34.   But he made a grand riff of ordinary evidence, still the way to understand the city from within.

35.   But he has expressed interest in freeing cities from state mandates to provide services and programs.

36.   But high rates in U.S. cities across from intensely industrialized Mexican towns led researchers to suggest the defects may be tied to toxins generated by maquiladoras.

37.   But many hockey players come to the big city straight from the Canadian farm.

38.   But other cities from New York to Los Angeles are eagerly vying to lure multimedia firms their way, according to an Arthur Andersen study.

39.   But San Diegans are pleased with the television images of their city from the Republican presidential convention.

40.   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.