The Association of Attorney-Mediators is urging a federal judge to block the disclosure of evidence about an unsuccessful attempt to mediate a dispute between a woman and her former employer.In an amicus brief, the association argues admitting the evidence in court would be contrary to both public policy and the Illinois Uniform Mediation Act.The promise of confidentiality is at the core of the mediation process, the brief says.It contends the assurance that what they say will not be shared in court or in public allows …