Should firms be allowed to discriminate?Recently, a small retailer in the southern US advertised in the gay press that it had more than 100 gay employees (a rather large proportion of its total staff).Should the store be prosecuted for discrimination against heterosexuals?(Similarly, should the former Dwelling House Savings and Loan which was located here in Pittsburgh and had virtually all African American employees, be charged with discriminating against whites?) How can one judge whether a situation is discriminatory or not?