A number of years ago, we had a bit of a motley crew over for Shabbat lunch. I remember that my brother was in town, visiting from New York. Another friend, a significant player in the Federation world was also there, as was a high school friend of one of our kids. And we were joined by one more friend, an Israeli Arab woman whom we’d initially met through my work. It was an interesting, though hardly relaxed, Shabbat afternoon. (The conversation took place in English ironically, since even though the Arab woman spoke a mellifluous Hebrew, our American Jewish...