He is currently working on a memoir, as well as an oral history of an American woman who was trapped in Iraq with her baby during the First Gulf War.
Klempner grew up in New York, and attended Cornell University, graduating Phi Beta Kappa in 1997, and winning a J. William Fulbright Fellowship. In 2000, he received an M.A. in folklore from the University of North Carolina at Chapel Hill.
Klempner's articles have appeared internationally in professional journals such as the Oral History Review, as well as the Christian Science Monitor, Baltimore Sun, and other mainstream newspapers and periodicals. Online, besides being a blogger for the Huffington Post, he is a contributor to Common Dreams and Alternet.