Mao Asada of Japan reacts after completing her routine in the women's free skate figure skating finals at the Iceberg Skating Palace during the 2014 Winter Olympics, Thursday, Feb. 20, 2014, in Sochi, Russia. (AP Photo/Ivan Sekretarev)

AP sports writer Barry Wilner weighs in on the controversy over figure skating’s complex and subjective scoring system, which triggered debate after Russia’s Adelina Sotnikova outscored defending champion Yuna Kim to win the gold in Sochi.