51.   A car bomb exploded in a crowded outdoor market here Friday, killing two Palestinian suicide bombers and casting new doubt on Israeli ratification of a new peace deal.

52.   A former employee suddenly appears, making assertions that cast doubt on his character.

53.   A loss will cast some doubt on the Huskies, so they should be motivated.

54.   A new poll casts doubt on the conventional wisdom that people who do not vote are more alienated about the state of American politics than those who do.

55.   A new study from the California Department of Health Services is casting further doubt on claims of a link between a common childhood vaccine and rising cases of autism.

56.   A large study has cast strong doubt on the increasingly common practice of giving growth hormone injections to short children to help them reach an average height.

57.   A newspaper report this morning that the tax burden for individuals will increase next year cast doubt on the strength of the economic recovery.

58.   A report being published Friday in the journal Science, however, casts doubt on that discovery.

59.   A report of declining full-year earnings at Tokyo Electron Ltd., which makes equipment to produce semiconductors, cast doubt on the whole industry, analysts said.

60.   A UPN executive praised Arndt, but said UPN wanted someone with a more sinister nature that might cast doubt on his character.