One of my students gets it.
We skipped over the Japanese Internment, due to time pressures, but the primary sources of the Korematsu trial are in my reader (at least, the exec. order as signed by Roosevelt, and the dissent in the Korematsu case).
One of my students, a muslim gal (and currently the best student in the class) looked at me and said, “can they still do this?” On my saying no, that the order was repealed, she then unfocused her eyes for just a second, before looking back at me and asking “could this happen again?”
“Yes. Scare enough people badly enough, and it could. That is why the State of Texas makes you take this course, so that you will know that it happened, and why it happened, so that you and your kids’ generations can make sure it doesn’t happen again.”