by Heather Vogell

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A high-ranking NASA official warned his employees Friday to “use discretion” in public when displaying badges or emblems that identify them as federal workers — part of an effort, the agency says, to protect its employees amid “stories of possible harassment” outside of work.

“We are all very proud to work for the space program,” wrote Dr. James Polk, NASA’s chief health and medical officer. “But in the current environment, with a lot of negative rhetoric coming in our direction, I want you all to please use caution.”

Since taking office in January, President Donald Trump and his administration and allies have used strong language to disparage federal workers, whom they have been firing en masse. “We’re bloated. We’re sloppy. We have a lot of people that aren’t........

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