Winter Olympics: U.S. women's hockey team settles for silver, Russia's Kamila Valieva stumbles in figure skating

At the Beijing Winter Olympics, the U.S. women's hockey team won silver as Canada took gold, Mikaela Shiffrin wipes out, and star Russian figure skater Kamila Valieva failed to medal after a doping controversy. CBS News' Vladimir Duthiers and Anne-Marie Green have the highlights.