Kirsti Itameri, an independent journalist in Brooklyn, filmed the scuffle on her phone when she herself was roughed up by “a man my father’s age,” she said, who grabbed her by both wrists and violently shook her in an apparent attempt to stop her filming. The incident, which has been reported in the Egyptian news media, happened in front of a police officer, and Ms. Itameri filed a report against the man for harassment, she said.