Gangsters are sometimes as audacious as they are violent, and the cat-and-mouse game they play with law enforcement has been selling newspapers for as long as newspapers have been printed. From the bootlegging gangs of the 1920s to the Mafia dons of today, this quiz will test your knowledge of American crime and find out how much you know about the colorful figures who have clawed their way to the top of the underworld tree.