House Speaker Nancy Pelosi says a wall at the border would be an immorality. Logically, this is nonsense, too. There are walls there now. Does she want them torn down? Walls are inanimate objects, and whatever morality we ascribe to them is in accordance with their purpose. A scalpel is good when it is used to save a life; it is evil when it is used to take one. To compare — as many have done — a border wall designed to keep people out to the Berlin Wall, which was designed to keep people in, is an exercise in asininity.