Good to see Media Matters (a great site, which initially picked up on Imus's comments) holding the mainstream media to account for "rehashing debunked Obama rumors":

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Couric's "Notebook" rehashed debunked Obama rumors

http://mediamatters.org/items/200704130003

In the April 12 edition of her "Notebook" video blog, CBS Evening News anchor Katie Couric asked, "Is America ready to elect a president who grew up praying in a mosque?" and proceeded to repeat debunked rumors surrounding Sen. Barack Obama's (D-IL) childhood years in Indonesia.

Couric claimed that Obama's "background sparked rumors that he had studied at a radical madrassa, or Quranic school -- rumors his campaign denied, declaring that Obama is now a practicing Christian." However, in noting simply that Obama's campaign "denied" the rumors that he attended a madrassa, Couric ignored the fact that these allegations have been thoroughly debunked.