I submit that unbiased journalists don't exist, and further, that what one expects from a journalist is a detailed analysis from an expert's point-of-view; both of these things imply bias. To make matters worse "pure" factual accounts (e.g. AP feed) are biased insofar as they remove fact from context.
Of course, it's worth knowing what the journalist's biases are, but I think this apparent quest for pure objectivism is misguided.