21.   A more subtly conflicted, less hot-aired actor could have helped blur the lines between good and bad and made Cal a tragic figure, too.

22.   A large Victorian wraparound porch creates a deck that can accommodate large crowds and further blurs the line between indoors and out.

23.   A new movement, called dancesport, blurs the line between professional athletics and professional dancers.

24.   A year ago, Ford dramatically blurred the lines in London at the annual Greenpeace business conference.

25.   According to Cohen, the playwright accomplishes this by having Will Shakspere act as a cover for Oxford and then blurring the line between the two.

26.   Age blurs the lines that separate experience that enhances from experience that stifles and suffocates and hardens into tunnel vision and routine.

27.   All that interbreeding, one would think, would blur the lines between species, reducing diversity.

28.   Books, too, are blurring the line, with reviewers failing all too often to flag the fiction in works of ostensible nonfiction.

29.   But Columbine blurred the lines between supporters and opponents of gun controls, especially among lawmakers.

30.   But in blurring the lines between weekend and weekday, work often trumps rest, researchers say.