Wikipedia:

Knight-Ridder reporters were some of the few journalists that questioned the basis of the 2003 invasion of Iraq, as discussed in the episode of Bill Moyers Journal entitled “Buying the War”. However, due to the lack of presence of Knight Ridder reporting in the newspapers of major media cities such as New York and Washington, DC, their reporting did not have as much of an impact as it would have had it come from The New York Times or The Washington Post.
http://en.wikipedia.org/wiki/Knight_Ridder

And EJSS will tell you that the prediction markets is a new form of journalism. (Up to you to discuss that, if you wish.)

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Just an aside on “journalism”. With declining newspaper circulations and the free Web becoming the dominant model, the “journalism” is passing thru a crisis, it seems. People who read news websites and blogs for free don’t realize that.

Overall, it seems like an extreme case of the ‘blocked flow of information within organizations’ discussed in a previous post.

I agree with Chris that “anonymous information aggregation mechanism[s] that give[] an incentive to people who come forward with advanced information” may be called for. It occurs to me that journalism (both traditional and new) can also provide an “anonymous information aggregation mechanism,” though the incentive structure doesn’t always direct rewards toward those who reveal the most useful information.