Video Of Man Harassing Woman Over Puerto Rican Flag Shirt Prompts Investigation

"If you're an American citizen, you should not be wearing that shirt in America," a man says to a woman wearing a Puerto Rican flag shirt in a Chicago park. However, Puerto Rico is a U.S. territory.
ref:https://www.npr.org/2018/07/11/627929289/video-of-man-harassing-woman-over-puerto-rican-flag-shirt-prompts-investigation