Johnny C. Taylor Jr., a human-resources expert, is tackling your questions as part of a series for USA TODAY. Taylor is president and CEO of the Society for Human Resource Management, the world's largest HR professional society.

The questions are submitted by readers, and Taylor's answers below have been edited for length and clarity.

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Question: Why would a worker get written up for changing the breakroom TV channel to Fox News when it's OK to change the channel to CNN? – Robin

Johnny C. Taylor, Jr.: Free-speech rights are guaranteed under the U.S. Constitution, but the Constitution doesn’t apply to private employment.