"Thomas' questions came in case in which the court is considering placing new limits on the reach of a federal law that bans people convicted of domestic violence from owning guns.
With about 10 minutes left in the hourlong session, Justice Department lawyer Ilana Eisenstein was about to sit down after answering a barrage of questions from other justices. Thomas then caught her by surprise, asking whether the violation of any other law "suspends a constitutional right." "
CBS Article
Clarence Thomas asks questions in court for 1st time in 10 years
It's interesting this happens after Justice Scalia is passed on.