In May 2017, journalist Matt Hart received a USB drive containing a single file-a 4.7-megabyte PDF named "Tic Toc, Tic Toc. . . ." He quickly realized he was in possession of a stolen report prepared a year earlier by the United States Anti-Doping Agency (USADA) for the Texas Medical Board, part of an investigation into legendary running coach Alberto Salazar, a Houston-based endocrinologist named Dr. Jeffrey Brown, and cheating by Nike-sponsored runners, including some of the world's best athletes.