Jury selection resumed for a fourth day this morning in the criminal trial of former Massey Energy CEO Don Blankenship.

Media representatives, including a growing number of national outlets, were again barred from the courtroom.

At times this morning, audio from U.S. District Judge Irene Berger’s questioning of potential jurors could be heard in a separate courtroom where spectators were allowed.

Several court staff scrambled to determine which microphone in the courtroom was turned on.