Aug 26, 2013 — The bans stem from a incident in which an American athlete tampered with the skates of a Canadian competitor. A panel found coach Jae Su Chun "reated an atmosphere which led to the tampering action."
Jun 20, 2013 — Mark Greenwald's departure comes just eight months before the next winter Olympics and while the organization is steeped in controversy.
Jun 4, 2013 — After admitting to tampering with a rival's skate blade, U.S. speedskater Simon Cho will boycott a hearing in Germany next week that could bring a lifetime ban, NPR has learned. Cho says his coach ordered him to tamper with the Canadian's skate in 2011.
Oct 12, 2012 — Jae Su Chun says he did not verbally or physically abuse his skaters. He also denies telling one athlete to damage a competitor's skates. But he does apologize for not reporting the incident.
Oct 11, 2012 — They have been accused of physically abusing skaters and failing to report that one athlete sabotaged a Canadian competitor's skates.