Rereading Krakauer’s Into Thin Air after finishing Hansen’s book, I was once again struck by the brutal selfishness and callous disregard for one’s fellow humans that characterizes contemporary mountain tourism. In 1996, Japanese climber Eisuke Shigekawa and his partner had walked past three dying men from another party on their way to the summit of Everest; they offered no aid on their way to claim glory, and none on the way down, despite the fact that the three men were alive and not yet past hope. Partly this is due, of course, to the harsh conditions up there, which make it hard to keep oneself alive, let alone help another in danger. (“Above 8,000 meters is not a place where people can afford morality,” Shigekawa later said.) But then, Everest is not a battlefield, nor a suddenly occurring natural disaster area — and you have to wonder about individuals who have knowingly and freely put themselves in a situation where they’ll have no choice but to turn their back on those dying all around them. That these people risk their lives is a well-worn cliché; what’s less acknowledged is the degree to which they risk — and lose — their humanity for the sake of a thrill, or a little glory.