I believe it is a group of issues that this public outcry is addressing:
1 - There seems to be a general attitude that it is okay to denigrate, debase and degrade women in this society, with the commercialization of sex, sexism in film, media, obsessiveness with youth and sex in general;
2 - Members of the black community, in particular, have been trying to address the Hip Hop and Rap culture which continues to promote mysoginistic views in their portrayals of women in music, videos and film;
3 - And yes, I believe that there is a hypocrisy with regard to whom is allowed to use various staples of the Rap and Hip Hop culture vernacular -- such as those words used by Imus. It is more than apparent, that certain words, in certain contexts, is considered "ok" to use by those within that culture or race. But anyone outside of that culture or race, is, effectively, taking his or her life in her hands.
The bottom line, is that none of it is okay. It should not be acceptable for anyone in our culture, to use terminology that is denigrating to women, or any particular race in the public news media, whether it is an "entertainment" media or not.
There is most definitely, a double standard in our culture with regard to race, gender, age, and many other things.