Recently your company has begun to promote its diversity efforts, including same-sex (and heterosexual) partner benefits and a non-harassment policy that includes sexual orientation, among other things. Your department now has new posters on the walls with photos of employees who represent different aspects of diversity (e.g., Black, Hispanic, gay). One of your employees is upset about the diversity initiative and has begun posting religious scriptures condemning homosexuality on his cubicle in large type for everyone to see. When asked to remove them, your employee tells you that the posters promoting diversity offend Christian and Muslim employees. What should you do?