Former FBI Director James B. Comey’s open testimony before the Senate Intelligence Committee earlier this month, broadcast live on national television, reflected well on our democracy. An estimated 19.5 million people watched our government at work. On the same day, Supreme Court Justice Stephen G. Breyer told an audience of lawyers, law professors and students that he was not ready to allow the public to watch Supreme Court proceedings — because, he said, cameras might change the nature of oral arguments.