From the Telegraph:
...People sometimes ask when I became a pessimist. The answer is the summer of 1991 when I accompanied Serb troops into the Baroque city of Vukovar – shattered by howitzer shelling within a comfortable drive from Vienna, and strewn with the bodies of dead children – and watched 300 wounded prisoners taken from hospital. I assumed they were at last safe. We learned later that they were machine-gunned shortly afterwards at a collective farm nearby.
The unthinkable was happening before my eyes, though it was small in scale compared to the slaughter of 8,000 Bosnian Muslim men and boys at Srebrenica, which I later covered at a trial in The Hague....
-from "Be Very Careful, Beloved Spain" 25Sept12