Bias itself comes in different shadings and types-political bias, religious bias, cultural bias.
Most information is limited, distorted, or biased in some fashion.
For example, news clips from CNN may seem objective, but their extremely abbreviated nature illustrates their limitation as information sources about the world. Many print sources may seem objective and balanced until you learn who the author or producer of the information is. It's probably best to assume that totally unbiased, objective information just doesn't exist. The whole concept of objectivity is difficult to accept when we know that individuals and groups have various agendas, that people who do research and report on it have various frames of reference that inherently color the way they do that research, and that language itself is problematic in even doing database searches because words can carry loaded meanings or at least special, idiosyncratic meanings. Thus finding total objectivity in our sources is an unrealistic goal.