For America gave Politico reporter Ben Smith a 2010 planning memo for a profile he was writing on the liberal advocacy group. But Smith curiously withheld key parts of the 89-page document when he published his story, “Media Matters’ war against Fox,” in March 2011. The Daily Caller became aware of this after obtaining the same document while reporting the series “Inside Media Matters,” which debuted here late Sunday night. It’s not clear why Smith, who recently left Politico for the website BuzzFeed, didn’t include more specifics from the lengthy document in his March 2011 story if he had the...