William Finnegan’s “Letter from Maine” tells of Somali refugees landing in Lewiston, Maine, and the social implications. In it Catherine Besteman (anthropology) shares a remarkable story. After years of trying to track down the Somali Bantu people she met in the Middle Jubba valley while researching her book, she found them in a most unlikely place — as co-participants in a panel discussion in Lewiston, 50 miles from her home.