21.   And for households considering their first home-theater systems, or upgrading an analog setup to digital sound, the uncertainty poses various risks.

22.   And researchers like Dr. Kreiss are evaluating why certain processes pose particularly high risk to workers.

23.   And tracking stocks can pose significant risks for investors and for the parent companies, as shareholders in the biotechnology company Genzyme are discovering this week.

24.   And yet analysts said that the dangling offer poses certain risks, too, for McNealy.

25.   Any formula for saving the fund would likely involve pain that could pose political risks to its proponents.

26.   And, as with any genetically engineered crop, the squash posed the risk that its new genes might cause it to spread and become difficult to control.

27.   Andrus said only those who have ties to communities, jobs and family, and who pose no risk, will be released under the revised policy.

28.   Apart from causing a mild flu in most of the patients, the technique appears to pose no risk, the researchers reported.

29.   As a result of cold air aloft, hail will pose a risk in some areas, particularly over southern and central Arizona.

30.   As a result, Larsen said, food supplies were dwindling, water supplies were inadequate and the absence of garbage collection posed risks of outbreaks of communicable disease.