"Spectacularly high drug prices have become a political punching bag, especially since Turing Pharmaceuticals struck a nerve by increasing the price of a 62-year-old drug by more than 4,000 percent -- a mind-boggling increase similar to waking up one day and finding out a gallon of gas costs nearly $100.... The details do indeed turn out to be as insane as they sound. But behind them lurks a real lesson about the way drugs are priced in the United States and what role they actually play in the trillion-dollar fight over controlling health-care costs."