1.   Brownback said peace and prosperity can mask those problems.

2.   But other diplomats say that this assertion masks another problem.

3.   But the favorable signs masked problems waiting to explode.

4.   But, fearful of bad publicity, companies are loath to report theft cases to law enforcement, masking a problem that has grown alongside the soaring economy.

5.   Cutting Social Security benefits would thus not actually address the underlying deficit problem -- it would just produce a larger surplus to help mask the problem.

6.   Embarrassed Canadian authorities have attempted to mask the problem.

7.   He said that temporary rent subsidies granted to thousands of displaced tenants has masked the problem as well.

8.   Meanwhile, emerging cities are finding that their rapid growth may mask urban problems but do not dissolve them.

9.   Nevertheless, the imagery the presidents are trying to foster has failed to mask serious problems in the U.S.-Mexico relationship.

10.   Separation can mask other problems or make them seem worse than they are.