Whether in a South African coal mine, on an Alaskan fishing boat, or in the American military, men's protective instinct toward women, and women's protective instinct toward themselves (and children) keeps men more disposable than women. Here's an example of the dynamic at work in the military. At the military's SERE (survival, evasion, resistance, and escape) schools, concern about the well-being of women was so prevalent among male students that trainers now work to desensitize men to sexual assault and other abuse of women lest their sensitivity be used against them in war. We think of women in the military as being safer in part because they are still prohibited from the most dangerous assignments. But this prohibition is just a reflection of the traditional male's instinct to protect women.