January, 2015 will mark a century of the war on drugs in the United States: one hundred years since the first arrests under the Harrison Act. Facing down this anniversary, Johann Hari was witnessing a close relative and an ex-boyfriend bottoming out on cocaine and heroin. But what was the big picture in the war on drugs? Why does it continue, when most people now think it has failed? The reporter set out on a two-year, 20,000-mile journey through the theater of this war--to find out how it began, how it has affected people around the world, and how we can move beyond it. Chasing the Scream is fueled by dramatic personal stories of the people he meets along the way: A transsexual crack dealer in Brooklyn who wanted to know who killed her mother, and a mother in Mexico who spent years tracking her daughter's murderer across the desert. A child smuggled out of the Jewish ghetto during the Holocaust who helped unlock the scientific secrets of addiction. A doctor who pushed the decriminalization in Portugal of all drugs--from cannabis to crack. Powerful, propulsive, and persuasive, Chasing the Scream is the page-turning story of a century-long mistake, which shows us the way to a more humane future.