If this is true and the recruiter has emails to back up his case it should be a pretty easy case to win. According to the the rules: Title VII of the Civil Rights Act of 1964 (Title VII), which makes it illegal to discriminate against a person on the basis of race, color, religion, sex, or national origin. It should also be a massive fine.
When I considered whistleblowing -- what started as little spiraled out of control -- and looked over evidence, there was very little.
One attorney at the company was fired for putting the wrong thing in writing.