What starts as an argument over a field can turn into a religious crusade.

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It's is an argument that divides experts in the field.

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These guys know what they're talking about and they're going to have an argument for why they do what they do on the field.

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Scheidies says he doesn't buy the argument that the blackout glasses ''level the playing field'' between runners who have some sight and those who have none.

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We have to stand foursquare and 100 percent with the commanders in the field and so on and the rest of the argument.

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