American University in Washington, D.C., brought in the Federal Bureau of Investigation to probe the defacement of posters on campus, according to an email sent to students last week. “No community member should remove or deface any poster,” administrators wrote in the November 16 email. “We are investigating incidents of poster defacement, including in some cases with our FBI partners, and they will be addressed through our policies and conduct process.” The notice went out the same day a university official sent an email about a recital poster in the campus performing arts center that had been vandalized with “antisemitic...