Rove and US Atty firings: where's the injustice?

The first line of this story is tantalizing, but where's the beef? Where's the injustice? From the story:

White House e-mails and transcripts of closed-door interviews with former Bush aides Karl Rove and Harriet Miers reveal involvement as early as May 2005 by Rove's office in the 2006 firings of nine U.S. attorneys.

Voter fraud (which is of the certifiable and Democratic Party variety) may not be important to certain DOJ attorneys, but it is to me and to most Republicans.