* The New York Times
* The Blade (Toledo, OH)
* Willamette Week (Portland, OR)
* The Washington Post
* The Birmingham (AL) News
* The Chicago Tribune
* The New York Times
* The New York Times
* ProPublica
* Philadelphia Daily News
* Sarasota Herald Tribune
* The Seattle Times
* The Associated Press
* The New York Times
If that's not a diverse group of news organizations, I don't know what it.
That also doesn't include things like the Walter Reed Army Medical center scandal (http://en.wikipedia.org/wiki/Walter_Reed_Army_Medical_Center...), because it falls under the Public Service category: http://www.pulitzer.org/bycat/Public-Service.