Unbiased to me seems both unreasonable and unnecessary. Most newspapers have some sort of political or philosophical leaning, and I'm quite with that. Nobody is ever truly unbiased and trying to force them to write in such a way will generally produce dull article. What we should expect though is that all biases be clearly declared up front and that the distinction between "this is what has happened" and "this is what I think about it" is always made clear.