Hearts Grown BrutalBy: Roger Cohen In this brilliant book, Roger Cohen of The New York Times weaves together the history of Yugoslavia and the story of the Bosnian War of 1992 to 1995, as experienced by four families. I have tried to treat the story of Yugoslavia, which lived for seventy three years, as a human one, Cohen writes in this masterly book, which, like Thomas L. Friedmans From Beirut to Jerusalem and David Remnicks Lenins Tomb, makes us eyewitnesses at the