It is a fool’s errand to attempt a cost-benefit analysis on government programs. War, for example, is probably the oldest government program. It is easy enough to determine the cost in lives and treasure, but it is far more difficult to determine the benefits, and then, if these benefits were worth the cost. Back in the day, victory was the goal, and presumably the overriding benefit. In the past, “victory” was always understood as causing your enemy to surrender. Nowadays, of course, that is no longer the case. In the 1960s, it became popular to declare “war” on all sorts...