By Michael Rosenberg The USOPC executive says the decision to allow the 15-year-old skater to continue competing in Beijing is a threat to the entire system. BEIJING — Sarah Hirshland watches Kamila Valieva and sees what we all see: An extraordinary figure skater whose presence here represents, on a fundamental level, a threat to the Olympics. “When the integrity of competition comes into question in a way like we’ve seen here, you run the risk of compromising the integrity of the entire system,” Hirshland, the U.S. Olympic and Paralympic Committee CEO, told a small group of reporters Thursday…
