How a massacre of a village's Jews by their neighbors in WWII Poland is remembered — and misremembered

Memory can be slippery, especially when there's incentive to forget, or misremember. In the Polish village of Jedwabne, residents long said Nazis were responsible for the massacre, one hot day in July 1941, of hundreds of Jews in the village. Then evidence emerged that the villagers of Jedwabne had killed their own neighbors.