31.   But in countries such as Bosnia, Rwanda, Cambodia, Burundi and Congo, human-rights abuses have been the greatest threat to peace.

32.   But now the greatest threat is not the old-style hijacker, but a suicidal terrorist.

33.   But plastic -- not metal -- may pose the greatest threat.

34.   But most authorities believe that the greatest threat to Mexican migrants and those in transit through the country continues to exist in Mexico.

35.   But the caucuses could help determine which challenger poses the greatest threat to Dole from the right.

36.   But the greatest threat to safety during the wintertime is stupidity.

37.   But the greatest threat to this industry may also be coming from the sea, Slade said.

38.   But the greatest threats to American interests could come from three other countries.

39.   But the journey took more out of Clinton than it otherwise might not have and still poses the greatest threat to his authority.

40.   Cats, especially pets who are allowed to run wild in rural areas, pose the greatest threat to humans, health officials said.