The Department of Labor has a  webpage that contains a comprehensive list of federal whistleblower laws.  If you think you have been discriminated against or fired for complaining to your employer about something, you might want to take a look at this list and see if any of the laws could be applicable to your situation.  If so, you probably should contact an attorney immediately because many of these laws have short times for reporting or filing complaints about the discrimination. Click on the highlighted link above to go to the list.