The heads of a US Congressional committee and a commission focused on China have called on the Justice Department to fully investigate a break-in and reported vandalism at a California museum commemorating the Tiananmen Square crackdown. “The Justice Department and FBI should investigate vandalism at the [June 4th Memorial Museum] to protect the inalienable rights of the Chinese diaspora seeking freedom in the United States,” said a three-page letter delivered to the agency on Thursday. The note