41.   On the court, on the field, on the stage, life has a way of erecting barriers that cannot be run around or tunneled underneath.

42.   Opponents of MFN said the U.S. should reject it to punish China for suppressing dissent, erecting trade barriers and selling weapons.

43.   Partly as a reaction to this, and partly out of a rising tide of xenophobia, European countries are erecting barriers to newcomers.

44.   Political money tends to flow, they said, despite whatever legal barriers are erected.

45.   Preparing the work area entails laying down dropcloths and erecting barriers to keep the overspray confined.

46.   Security in garages can be tightened, parking can be prohibited in front of some federal facilities and barriers can be erected against suicide car bombings.

47.   Some corporations are now adopting new software that polices Web sites for potential violations and erects digital barriers that certain consumer data cannot cross.

48.   Some Asian politicians, pandering to nationalistic and anti-Western sentiment, may erect investment barriers to foreign money.

49.   Some regions have erected trade barriers, treating each other almost like foreign nations.

50.   Tearing down barriers to achieve equality can hardly be compared to erecting barriers to deny equality.