Why Does Bill Clinton Refuse to Have a DNA Test to Prove Bill Clinton is Not Danney Williams Father?

I am not a democrat and I am not a republican, furthermore I am not affiliated with any political party.
It has become clear to me that the mainstream media is not doing their job as journalists and reporting the facts regarding the Clinton's objectively. This video is a clear and specific example of what I mean.
Why has CNN, ABC, NBC and CBS not interviewed and reported about Danney Williams claims that Bill Clinton is his father?

I Want Justice for Danney Williams.