21.   Because none of the defendants were in the United States and foreign governments dispute jurisdiction, the case is seen as testing the limits of U.S. extraterritorial jurisdiction.

22.   A legal prosecution that would tempt advertisers to test the limits would be a poor substitute for the uncertainty that could strike them down like lightning.

23.   A few, gently testing the limits of debate, suggest that perhaps the government should stop insisting that Kurds identify themselves first and foremost as Turks.

24.   Burbage, who was nicknamed Boomer at the academy, specialized in testing the limits of Navy fighters.

25.   But as we tinker with cat breeds the way we have with dog breeds, we are bound to test the limits and introduce health problems.

26.   But because of his anger and his willfulness, he sometimes seemed to be testing the limits of friendship.

27.   But it may be testing the limits of Arkansas hospitality to expect a warm welcome back after a distant, controversial eight-year absence.

28.   But that would be testing the limits of confidence.

29.   Darryl Levine is a warm, gregarious man, but there are limits to even the warmest, most gregarious husband, and his wife was testing those limits.

30.   Even I, a relatively cautious being, tend to put myself through exercises that test my limits.