I think I’m losing my conservational edge. My implacable desire to save vanishing forms of marine life, in this case sharks, always takes a direct hit to the placability bone when I read about things like the 17-year-old gal who lost her leg last week to what was truly a ferocious shark attack in North Carolina. She is still with us only because of a hyper-heroic effort by her dad, who bashed his daughter’s attacker into retreat.