USC said Tuesday that it has taken significant steps to combat anti-Jewish hatred on campus, as federal civil rights officials prepare to investigate a complaint that the university allowed “a hostile environment of anti-Semitism” to proliferate, resulting in the resignation two years ago of its student government vice president. Rose Ritch, a Jewish student who in August 2020 resigned as USC’s undergraduate student government vice president, alleged she was targeted on social media due to her identity as a Zionist. In an email sent to the campus community at the time, Ritch said resigning was “the only sustainable choice I...