Plot: Bourdain delves into a dining scene at a crossroads: part iconic steel city defined by blue-collar, working-class comfort food – steak and potatoes, sausage and sauerkraut – and part foodie boom-town catering to the new high-tech industry. Bourdain criss-crosses the fault lines of old and new by sitting down with, among others, professional wrestlers, a civil rights activist, and writer and Pittsburgh native Stewart O’Nan