31.   Some experts blame the drought.

32.   Terrorism was suspected in the explosion at first, but government safety experts later blamed mechanical problems.

33.   The experts blamed a combination of factors, including the isolating effects of decades of apartheid and disparities in health care.

34.   The South African currency, the rand, fell Thursday to its lowest-ever level against the dollar and some experts blamed the crisis in Zimbabwe.

35.   The smoke is drifting into the United States from thousands of wildfires in Mexico and Central America that experts blame on unusually dry conditions.

36.   Welfare experts blame the restriction for chasing fathers from the home and contributing to the proliferation of impoverished families headed by women.

37.   An airline expert blamed the airlines for trying to squeeze in too many flights at peak travel times, and the FAA for letting it happen.

38.   Besides alcoholism, experts blame poor health care, a legacy of environmental abuse and a lack of money related to the decline and collapse of the Soviet Union.

39.   Budget experts partially blame less spending during the holiday season, a time that usually gives states their strongest influx of sales tax revenues.

40.   Experts blame the high casualty toll on unsafe vehicles, disregard for regulations and insufficient emergency services.