"We've got to be better, go to the dirty areas, make it hard, make it so he can't get out of his crease, " said Rangers defenseman Ryan McDonagh, whose delay-of-game penalty in overtime led to the winning goal.

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It's an escape that doesn't make you feel dirty.

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It may push dirty industries to less well regulated countries and make the overall problem somewhat worse.

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Mr. STEVE HINCHMAN (Conversation Law Foundation): And as consumers realize, they have a choice to buy a clean car that's 20 to 50 percent more efficient, we're going to hit a tipping point where it will no longer make economic sense for Detroit to continue making the dirty version of the car.

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Indeed, all the evidence suggests that when the wayward ref, Tim Donaghy, did make bad calls, he was so clever at it that the league's scrutiny failed to catch his dirty work.

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