evidence: Fifty years after the U.S. Supreme Court ruled that denying women jobs on the basis of motherhood violated their civil rights, systemic bias still exists against working mothers, writes Jean Lee, president and CEO of the Minority Corporate Counsel Association. The situation has worsened in the Covid-19 pandemic and employers need to do more to break down the maternal wall, she says. [...] Phillips vs. Martin Marietta Corp. may have dealt a blow to the so-called maternal wall—the bias and discrimination that mothers face in the workplace. But 50 years after the decision, that wall continues to cast a long shadow over corporate America. [...] But more work remains to ensure this trend becomes the norm, not the exception. The title of our report, "You Can’t Change What You Can’t See," remains truer than ever. And our call to action for corporate leaders across America—to track bias against working mothers, and to hold themselves accountable for preventing it—remains as urgent as it was back in 1971.