Borger was a correspondent in the United States, Eastern Europe, the Middle East and the Balkans and covered the
Bosnian War for the
BBC. In his reporting, Borger covered the
Bush administration military spending and Iraq policy. In the 2010s, he wrote about Iran. Borger is a contributor to the
Center on International Cooperation. In 2016 Borger published a book titled, ''The Butcher's Trail'' about the world's most successful manhunt, the pursuit and capture of Balkan war criminals. His 2024 book,
I Seek A Kind Person, traces the fate of some 80 Viennese Jewish children, including his own father, who were advertised in the
Manchester Guardian by their parents, looking for British foster parents to save them from the Nazis. ==Works==