31.   Lindsay said the unique military challenge of fighting a guerrilla war in Afghanistan blunts much of the U.S. advantage.

32.   Pittman and other Internet executives face some unique challenges.

33.   Ramon Dovalina, president of Laredo Community College, said the fact that the student population in many South Texas schools is so overwhelmingly Hispanic presents unique recruiting challenges.

34.   Rotella also works with stars in other sports, but sees golfers as a unique challenge because of the nature of their game.

35.   Remarriage can present its own unique challenges and potential difficulties.

36.   Renovating town houses in New York City presents unique challenges.

37.   Santa Clara traditionally presents unique challenges to Pepperdine.

38.   Self-promoting demagogues provide unique challenges to the American political culture, and that is especially true in diverse cities like New York.

39.   Still, there were unique challenges.

40.   That demand presents a unique challenge to Mueller.