Congressional hearings are a joke. The questioners get all of 5 minutes, most of which is taken up by speechifying. Have to get that facetime to let the constituents back home know what a FINE JOB their rep is doing for them. Whether or not the witness takes an oath is irrelevant because there is no judge to enforce responsiveness. Barry and Hillary skated on the Benghazi masacre for now, but history may well be less forgiving.