Is negro an appropriate way to refer to biracial people?

http://www.cnn.com/2014/02/19/living/biracial-black-identity-answers/index.html?hpt=li_c2


This article is about when the census listed Negro as a race option in 2010 and how people feel about it now. Most of the elderly think the negro is the proper and the appropriate way to refer to that race, but this generation that is unheard of. Readers also reject the term African American, the consider it inaccurate and awkward. This is absurd i feel that it should remain to be known as colored, that's not offensive and that's also not stating that they are from Africa or saying that they are some other kind of mix. This world is all about equality and yet people can go on and on about something as simple as mixed, colored or negro. I honestly didn't think this stuff was still a problem because that didn't happen around my high school. I would imagine this is at schools that are primarily white or a race other than, "black". It also surprises me that this is from new york, they seem quite intertwined with different races.