HERRIDGE: [Former State Department lawyer Catherine] Duval's job at the State Department got new scrutiny after a recent Fox News report that classification markings on some of the emails had been changed in her office so neither that Congress nor the public could ultimately see them, Bill. 

Previously:

State Dept. Shuts Down Fox's Anonymous Speculation Of Clinton Aides Stripping Email Classification Markings

Myths And Facts On Hillary Clinton's Email And Reports Of “Top Secret” Materials

More Myths And Facts On “Top Secret” Materials In Hillary Clinton's Email