Diversity in the Newsroom?

As a journalist, we are trained to be objective and to also have balance in our stories, but is it ethical to create balance, if the balance isn't there naturally? To take a break from all the racial coverage of the campaign and as I reminisce over my college years, I recall a class in which we discussed if newsrooms themselves are diverse. In the days of old, newsrooms were predominately white, but as the world has become more diverse so have the journalists that cover it. There are many journalistic organizations devoted to minorities, like the National Association of Black Journalists (NABJ) and even the National Association of Hispanic Journalists (NAHJ). In my opinion this creates a filter to make sure that news going out is balanced and diverse.
Do news stations overwhelmingly portray blacks as criminals and whites as victims of crimes, or are they simply delivering the truth? Are whites often portrayed as the experts and blacks usually just as a witness to an event?
In my opinion, I think newsrooms are trying to become more racially diverse in their reporting, but I think part of that is due to the fact that there are so many more minority journalists, who act as filters. In MOST newsrooms there are a fair number of black journalists. According the the NABJ's, blacks make up "22.2% of the tv news workforce." The article reported that this was an increase from 3 years ago. However while the number of black journalists is increasing, there seems to still be few Hispanic and Asian journalists. In a report published by the Asian American Journalists Association, it showed that Asian Americans only make up about 2.7 percent in local television newsrooms. Which may explain why it's not very often you see an Asian represented in the media.
It's important for newsrooms to be diverse in order for coverage to be diverse. Diversity ensures that stories that are important to every ethnicity is covered and that stories are not racially biased.