Joe Blair put away his motorcycle and his dreams to do manual labor while supporting four children, one of whom is autistic. Rekindling a sense of purpose in his life took something big: the Iowa River flood. Blair, a graduate of the University of Iowa Writers' Workshop and a pipefitter who lives in Coralville, has just published his memoir, "By the Iowa Sea." (Scribner) This hour, Charity talks to Blair about his new book, one of Publishers Weekly's Top 10 Memoirs of 2012.