Passage Summary: Because reporters can't help but be biased, we need editors to check their work if we want the news to be as fair and objective as possible.

Conclusion: Trained editors must review journalists' work to identify and eliminate bias to ensure maximum objectivity.

Reasoning: Journalists are inherently biased, even when trying to be objective, so an external review process is required to catch the biases they miss.

Analysis: In this 'Assumption EXCEPT' format, four choices are vital to the argument and one is not. The argument assumes that objectivity is a desirable goal, that editors are actually capable of spotting these biases, and that the editors themselves won't introduce more bias than they remove. It also assumes that there isn't some other, better way to achieve objectivity. The 'odd one out' will likely be a statement that is either irrelevant to the logic or goes far beyond what is strictly required for the conclusion to be plausible. Focus on the link between the 'inevitability' of bias and the 'imperative' of the editor's role.