The prosperous Haifa suburb shows no scars of the massacred prisoners and slain villagers who lived there. That makes Descendant a somewhat neater narrative. There are signs it already has. As one Haifa professor tells Schwarz: “These things do not glitter on the horizon of Israeli public life.” Ex-soldiers, now 90 or older, tell us what Tantura was like first-hand. Aboard the Clotilde were 110 West African captives, smuggled onto US soil in the dark more than 50 years after importing slaves became a crime punishable by death. Descendant is…