On February 19, 1942, FDR made the biggest mistake of his four terms in office. This one. Executive Order 9066, using the Alien Enemies Act (which, remember, is still on the books) ordered that Americans of Japanese descent be locked up in camps, deprived of property and freedom, for no reason other than their ethnic background.

It goes without saying that this is wrong. Horribly, unconscionably wrong. It is also unconstitutional. Specifically, it violates the Fifth Amendment here: "nor shall any person...be deprived of life, liberty, and property, without due process of law." This is exactly what happened to Japanese-Americans during World War II.