When the noted and controversial scholar Tony Judt fell fatally ill,Yale professor Timothy Snyder stepped forward to write one last book with him. Here, Snyder recalls the collaboration and the legacy Judt left behind. Left, Tony Judt (John R. Rifkin); right, Timothy Snyder (Ine Gundersveen) "An intellectual by definition is someone temperamentally inclined to rise periodically to the level of gen