Is there something that I can do about this?

On 08/25/2009 we were at a company function celebrating the owner’s birthday. I was there mingling with my other co-workers when my supervisor came in. We approached one another with a hug. And she turned and called me a “******”. I was wondering if I had heard her correctly. Then she confirmed it by turning to K...... a nearby co-worker and said I just called her a “******” and laughed about it. I felt so deflated and ashamed. Not only did she degrade me by calling me a black woman one of the ugliest names in history left over from slavery. To rub salt in the wound; she humiliated my by telling someone what she had done as if it was acceptable behavior. To date she hasn’t thought enough about it to say, I made a mistake and I am very sorry and there was no excuse for my behavior for uttering such a hurtful word. We have had previous discussion about how she directs orders to me as her subordinate. I have tried explaining to her the difference between asking vs. ordering me to complete various office tasks. Now, I know it was all part of a bigger underlined problem of racism & prejudice. I have had the worst two weeks since this incident at work. Being here has made me angry, stress out and unable to focus. Her blatant disregard for human value makes me feel with that one ugly word our struggle as a people is far from over. This complaint is regarding my constitutional and civil rights as well my California and Federal employee labor laws. I am black, a woman, a mother I would never want my children to feel as low and disrespected as I feel now. I am not just doing this for myself respect but every other minority that racism effects.