Corruption, fraud, theft, waste. These four dull horsemen of the auditor’s apocalypse are as common as violent death in Afghanistan and as the man responsible for overseeing the United States’ $109.7 billion reconstruction effort in the country, John Sopko is as well acquainted with their depressing ubiquity. The former prosecutor was appointed Special Inspector General for Afghanistan Reconstruction by President Obama in 2012 and his caustic quarterly reports to Congress open a window onto a world in which these four horsemen have never been reined in, while cowboys run riot in Kabul.