Another example of the Jew-identification problem

I have argued that a "systematic" Jewish holocaust was impossible because the Nazis had no reliable way of identifying Jews and non-Jews. Another example of this difficulty of identifying Jews is that a Virginia state legislator did not know that the delegate seated next to him in the legislative chamber is Jewish:

When Englin sat, Hargrove reached over and softly patted Englin on the arm. Then, Hargrove rose to speak and, looking down at his seatmate, said, "I didn't even know you were Jewish, I had no idea of what your religion, (and) I don't care what your religion is."

A related post on this blog is here.