Today’s 21-year-old was 3 when the Berlin Wall came down; his or her parents were born well after World War II. Unlike people who lived through the experience of 1914-1918 or 1939-1945, they have no reason to draw the conclusion that everything can-and sometimes does-go terribly wrong. It is tempting to turn your eyes away from the possibility that Islamist terrorists could get their hands on nuclear or chemical or biological weapons and wield them against us. Just as it is tempting to turn your eyes away from the certainty that current programs will lead to the state gobbling up much of the private sector here as it has done over the past generation or two in a number of European countries, most notably France. But as we saw this month, even the comfortable French finally voted against that.