Jury duty

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When Stephen Breyer appeared for jury duty at the courthouse in Marlborough, Mass., he wasn't chosen to be on a case. But then he's decided many in his life -- as a justice on the U.S. Supreme Court. The district judge in Marlborough says a Supreme Court justice could have wriggled out of jury duty with a phone call.

I can't believe that there is not a standing rule that judges shall not serve on juries. Who in a jury room is going to argue or to disagree with a judge?