On March 20th of 1965, Bobby Kennedy became the first human to stand atop a lonely peak in the Canadian Yukon that had just been named to honor his assassinated brother, JFK. His climbing guide was Jim Whittaker, a mountain icon who at 28 had become the first American to summit Mt. Everest. From that solemn trek, Jim-the shy outdoorsman and eventual CEO of REI-and RFK...