Unbiased does not mean moderate. On some issues, only one side is moral. What is a moderate position on women's suffrage? What is a moderate position on the internment of the Japanese in WWII? A current example: What is a moderate position on torture? Even more basic: What is a moderate position on murder? To be between two sides of an issue is not to be unbiased. Rather, there is a distinct "moderate" bias (in quotes because moderate in America is conservative in Continental Europe and very liberal in most religious societies). The Moderate Bias is to assume that between two extremes is always the correct answer, even though history has shown that what was once extreme is now mainstream. Politics is a always progressing, and what was moderate fifty years ago is reactionary now. What is moderate today (an current example is supporting same-sex civil unions but not same-sex marriage; shame on you, Mr. Obama) will be very conservative in the future.
No political view is unbiased, and bias is not defined as, "anything with which I disagree." Rather, It is the role of the viewer to decided which bias she prefers. Many people want an anti-torture bias, and a pro-equality bias. But some want a ticking-time-bomb bias, or a religious bias, and it is foolish for either to claim that bias is something that only belongs to the other.