COLORADO SPRINGS, Colo. — The new head of USA Swimming has sent a letter to members of the national governing body saying the organization doesn’t tolerate sexual abuse or misconduct. The letter signed by president and CEO Tim Hinchey went out to member clubs and individuals Thursday. “Let me be clear: USA Swimming does not tolerate sexual abuse or misconduct, and I assure you that this organization is facing this extremely serious issue with one very clear goal — protecting children and athletes,” he wrote. This month, former Olympian and world champion swimmer Ariana Kukors alleged publicly that her former coach Sean Hutchison sexually abused her for a decade starting when she was a minor. Hutchison has denied the allegations. He acknowledged they