Don Imus and his lawsuit

Don Imus has announced that he will file a lawsuit over his firing from CBS. Apparently, his First Amendment rights have been violated, since he was fired for his (obnoxious) speech. According to his lawyer, CBS was required to give him a warning if he said anything offensive (not that he would ever do anything like that) before being fired. CBS counters that since he was talking over public airwaves, and he violated FCC regulations. What CBS doesn't seem to realize is that Imus has said many things for worse than calling a basketball team "nappy-headed hos". Undermining CBS's case, though, is the fact that Imus has called other people far worse than "nappy-headed hos". CBS didn't give him a warning them. Since Imus was given no other warnings, it would seem that he will win his case.