Chasing the FlameBy: Samantha Power Sergio Vieira de Mello a humanitarian, peacemaker and state builder was at centre of the most significant geopolitical crises of the last half century. Born in 1948, just as the post World War II order was taking shape, he died in a terrorist attack on UN headquarters in Iraq in 2003 as the battle lines in the twenty first century's first great polarizing struggle were being drawn. This is a dual biography: the story of a man who