In this piercing memoir, Roméo Dallaire, retired general and former senator, bestselling author and one of the world's leading humanitarians, delves deep into his life since the Rwandan genocide.      At the heart of Waiting for First Light is a no-holds-barred self-portrait of a top political and military figure whose nights are invaded by despair, but who at first light faces the day with the renewed desire to make a difference in the world.      Roméo Dallaire, traumatized