1.   Government figures underestimate the problem.

2.   Some people underestimate the problems that can arise from poor human relations.

3.   We do not underestimate the problems, but negotiations can be difficult to conclude.

4.   But even these numbers underestimate the problem.

5.   Independent AIDS experts say the official figures grossly underestimate the problem.

6.   The water-heater companies and Perfection now concede that they underestimated the problem, although they still believe only a fraction of the defective dip tubes will fail.

7.   Besides, the IMF from the outset underestimated the problem in Thailand, resulting in a bailout package that is not large enough to cope with the crisis.

8.   Experts cautioned that the diabetes figures reported Wednesday could severely underestimate the problem because about one-third of American diabetics do not realize they have the disease.

9.   Investigators said many violations are neither detected nor reported, leading officials to believe the problem is underestimated.

10.   Republican House Speaker Newt Gingrich suggested he had underestimated the problems posed by the other chamber.