How is the Healthy Workplace bill different from anti-discrimination protections?

At this writing, the Healthy Workplace bill addressing workplace bullying has been introduced in a number of state legislatures. Using the Healthy Workplace Campaign’s Web page [ www .healthyworkplacebill.org/faq.php ] answer the following questions: 1. How is workplace bullying defined? 2. What is the argument supporting legislation addressing workplace bullying? 3. How is the Healthy Workplace bill different from antidiscrimination protections? 4. What arguments might be raised against the Healthy Workplace bill?