Canada

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Men's super-G joint bronze medal winners Canada's Jan Hudec and United States' Bode Miller shake hands on the podium during a flower ceremony at the Sochi 2014 Winter Olympics, Sunday, Feb. 16, 2014, in Krasnaya Polyana, Russia. (AP Photo/Christophe Ena)

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Men's super-G medalists from left, United States' Andrew Weibrecht (silver), Norway's Kjetil Jansrud (gold), Canada's Jan Hudec (bronze) and United States' Bode Miller (bronze) leave the podium after a flower ceremony at the Sochi 2014 Winter Olympics, Sunday, Feb. 16, 2014, in Krasnaya Polyana, Russia.(AP Photo/Lee Jin-man)

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Men's super-G medalists from left, United States' Andrew Weibrecht (silver), Norway's Kjetil Jansrud (gold), Canada's Jan Hudec (bronze) and United States' Bode Miller (bronze) stand on the podium for a flower ceremony at the Sochi 2014 Winter Olympics, Sunday, Feb. 16, 2014, in Krasnaya Polyana, Russia.(AP Photo/Gero Breloer)

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Czech Republic's Eva Samkova, left, celebrates after taking the gold medal in the women's snowboard cross final, ahead of silver medalist Dominique Maltais of Canada, right, at the Rosa Khutor Extreme Park, at the 2014 Winter Olympics, Sunday, Feb. 16, 2014, in Krasnaya Polyana, Russia. (AP Photo/Andy Wong)

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Kendall Coyne of the United States looses her stick as she battles for control of the puck with Caroline Ouellette of Canada during the 2014 Winter Olympics women's ice hockey game at Shayba Arena, Wednesday, Feb. 12, 2014, in Sochi, Russia. (AP Photo/Petr David Josek)

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Austria forward Oliver Setzinger is upended by Canada forward P.K. Subban in the third period of a men's ice hockey game at the 2014 Winter Olympics, Friday, Feb. 14, 2014, in Sochi, Russia. (AP Photo/Julio Cortez)

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Canada defenseman P.K. Subban, left, and forward Sidney Crosby skate off the ice after beating Austria 6-0 in a men's ice hockey game at the 2014 Winter Olympics, Friday, Feb. 14, 2014, in Sochi, Russia. (AP Photo/Mark Humphrey)

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Canada defenseman Dan Hamhuis and Norway forward Mats Olsen Rosseli fight for control of the puck in the first period of a men's ice hockey game at the 2014 Winter Olympics, Thursday, Feb. 13, 2014, in Sochi, Russia. (AP Photo/Julio Cortez)

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Canada goaltender Roberto Luongo smothers the puck on a rebound in the third period of a men's ice hockey game against Austria at the 2014 Winter Olympics, Friday, Feb. 14, 2014, in Sochi, Russia. (AP Photo/Julio Cortez)

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Canada defenseman Shea Weber (6) defends against Norway forward Ken Andre Olimb (40) as Canada goaltender Carey Price blocks a shot attempt in the first period of a men's ice hockey game at the 2014 Winter Olympics, Thursday, Feb. 13, 2014, in Sochi, Russia. (AP Photo/Julio Cortez)

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Canada goaltender Carey Price reaches for a rebound on a shot by Norway in the first period of a men's ice hockey game at the 2014 Winter Olympics, Thursday, Feb. 13, 2014, in Sochi, Russia. (AP Photo/Mark Humphrey)

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Canada goaltender Carey Price stops a shot on goal by Norway in the first period of a men's ice hockey game at the 2014 Winter Olympics, Thursday, Feb. 13, 2014, in Sochi, Russia. (AP Photo/Mark Humphrey)

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Canada's Ryan Fry delivers the rock during the men's curling match against the United States at the 2014 Winter Olympics, Sunday, Feb. 16, 2014, in Sochi, Russia. (AP Photo/Wong Maye-E)

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Ryan Harnden of Canada delivers the stone during a round robin session against the United States at the 2014 Winter Olympics, Sunday, Feb. 16, 2014, in Sochi, Russia. (AP Photo/Morry Gash)

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Canada's Ryan Fry delivers the rock while Ryan Harnden, left, and E.J. Harnden, right, sweep the ice during the men's curling match against the United States at the 2014 Winter Olympics, Sunday, Feb. 16, 2014, in Sochi, Russia. (AP Photo/Wong Maye-E)

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With potentially-explosive shipments increasing 40-fold in recent years as North American crude production booms, the railroad industry, at the urging of the Obama administration and safety officials in the U.S. and Canada, is considering a closer look at the risks posed by trains that now carry hazardous liquids through every region of the country. (AP Photo/Matthew Brown, File)

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Canada defenseman Shea Weber, center, celebrates with forward Sidney Crosby, left, and forward Patrice Bergeron after scoring a goal against Norway in the second period of a men's ice hockey game at the 2014 Winter Olympics, Thursday, Feb. 13, 2014, in Sochi, Russia. (AP Photo/Julio Cortez)