Move-in day for students at the University of Southern California this week led to a remarkable small-world moment between two strangers with ties to the Holocaust in the public-exhibit space of USC Shoah Foundation’s lobby. Fifty-eight-year-old Alexander Moissis of the San Francisco Bay Area and his wife were helping their freshman son move into a dormitory when Alexander decided to steal away for a few minutes to visit USC Shoah Foundation, which is located on campus next to the dorm.