In my mind now I'm starting to switch off a little bit and starting to think maybe the fight's not happening, which is a bad thing because once I start switching off mentally then if it does happen I'm not going to be fully on my game.

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The trucking industry is starting the switch, with compressed natural gas being used in local delivery trucks and liquefied natural gas in over-the-road trucks, trains and barges.

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But, you know, you have a lot of former retired army guys who in the past have really backed Abizaid's plan who are starting to switch over and say, you know what?

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