Andrew Stanton, 38, was charged with threatening federal law enforcement officers, whom he said should be shot. He pleaded not guilty and remains in custody.
Federal agents at a protest in Chicago this week. A Wisconsin man has been charged with making threats toward federal agents in a series of TikTok videos.
The foreign service officer failed to disclose his contact with the woman, the daughter of a Chinese Communist Party official, the State Department said.
Jinchao Wei provided a Chinese intelligence officer with defense and weapons abilities of U.S. warships, including their vulnerabilities, prosecutors said.