As Americans continue to be locked down in their fight against the coronavirus, there is a growing and noticeable unease. Polls still show the public generally supportive of government policies to fight the disease, but patience is clearly wearing thin. That should not come as a surprise. The United States has always been a country whose definition is not so much what it is as what new things it is doing. Locking down and doing nothing is not in our nature. This country has been on the move since it was first founded — literally. In 1790, the year of the first census, the mean population center of the U.S. was in eastern Maryland. In other words, half of the country lived to the north and east of that point, and half of the country...