Now, obviously, Drum is right that the pressures to make a profit will prevent any company from being pure as the driven snow.

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Mr. FLASH: (Singing) Pure as the driven snow.

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Waves surged, and snow, driven by shifting winds, hit the ships at wild angles.

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But D'Antonio documents that Kitty's snow had been driven farther than previously supposed.

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Planalytics estimates weather has driven down demand 24% in the snow-removal industry in the current season from a year earlier.

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The rubber tracks (3) allow the Viking to travel over soft terrain such as desert, snow or mud because its load is evenly distributed over all four tracks, all of which are driven.

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