Rossi, one of the study's co-authors and an orthopaedic surgeon who works with the U.S. ski team under the direction of Dr. J.

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One such igloo complex tunnels under the grounds of a ski resort in Krvavec, Slovenia.

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Polanski, 76, is under house arrest at his chalet in the ski resort of Gstaad, Switzerland, while the Swiss decide on extradition.

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Also under the new policy, billiard cues, ski poles, and lacrosse and hockey sticks will be allowed in aeroplane cabins in carry-on luggage.

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Intrawest owns just one Colorado resort, a formerly down-at-the-hills ski area called Copper Mountain that drew just under 1 million visitors last year.

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He sold a ski chalet in Utah and an expensive house outside Boston before the campaign got under way (that still leaves him with a beach-front property in California, a lake-front one in New Hampshire and a relatively modest terrace house near Boston).

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