“Catching Tigers and Flies” is ChinaFile’s new interactive tool for tracking and, we hope, better understanding the massive campaign against corruption that China’s President, Xi Jinping, launched shortly after he came to power in late 2012. It is designed to give users a sense of the scope and character of the anti-corruption campaign by graphically rendering information about nearly 1,500 of its targets whose cases have been publicly announced in official Chinese sources.