America was built on the premise of free speech but today's news is filled with examples of limiting people's expression From prohibitions against misinformation to book bans and state laws restricting how teachers can discuss such topics as racial injustice sexual orientation and gender identity Correspondent David Pogue talks with writers and academics about free speech and a corresponding climate of self-censorship and with a New Hampshire history teacher who says The ghost of Senator McCarthy is alive and well in some of our state house hallways Performing as the group Tears for Fears English pop rockers Roland Orzabal and
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